Global thermoacoustic oscillations in a thermally driven pulse tube
Abstract We obtain linearized, BiGlobal thermoacoustic solutions in a pulse tube driven via an imposed mean temperature gradient. Here, the pulse tube is treated as a key unit of a thermoacoustic heat engine, in which the conversion of thermal energy to useful acoustic fluctuations occurs. A primary...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Kumar, Saravana [verfasserIn] |
|---|
| Format: |
Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2019 |
|---|
| Schlagwörter: |
|---|
| Anmerkung: |
© Springer-Verlag GmbH Germany, part of Springer Nature 2019 |
|---|
| Übergeordnetes Werk: |
Enthalten in: Theoretical and computational fluid dynamics - Springer Berlin Heidelberg, 1989, 33(2019), 5 vom: 10. Aug., Seite 433-461 |
|---|---|
| Übergeordnetes Werk: |
volume:33 ; year:2019 ; number:5 ; day:10 ; month:08 ; pages:433-461 |
| Links: |
|---|
| DOI / URN: |
10.1007/s00162-019-00501-2 |
|---|
| Katalog-ID: |
OLC2071167287 |
|---|
| LEADER | 01000caa a22002652 4500 | ||
|---|---|---|---|
| 001 | OLC2071167287 | ||
| 003 | DE-627 | ||
| 005 | 20230401070904.0 | ||
| 007 | tu | ||
| 008 | 200820s2019 xx ||||| 00| ||eng c | ||
| 024 | 7 | |a 10.1007/s00162-019-00501-2 |2 doi | |
| 035 | |a (DE-627)OLC2071167287 | ||
| 035 | |a (DE-He213)s00162-019-00501-2-p | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 082 | 0 | 4 | |a 530 |a 620 |q VZ |
| 082 | 0 | 4 | |a 510 |a 530 |q VZ |
| 100 | 1 | |a Kumar, Saravana |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Global thermoacoustic oscillations in a thermally driven pulse tube |
| 264 | 1 | |c 2019 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ohne Hilfsmittel zu benutzen |b n |2 rdamedia | ||
| 338 | |a Band |b nc |2 rdacarrier | ||
| 500 | |a © Springer-Verlag GmbH Germany, part of Springer Nature 2019 | ||
| 520 | |a Abstract We obtain linearized, BiGlobal thermoacoustic solutions in a pulse tube driven via an imposed mean temperature gradient. Here, the pulse tube is treated as a key unit of a thermoacoustic heat engine, in which the conversion of thermal energy to useful acoustic fluctuations occurs. A primary goal of this work is to understand the hydrodynamic efficiency of the energy conversion process and how it depends upon some of the important operating parameters, including the geometry of the device which in the limit of long length-to-diameter ratio approaches the so-called narrow tube approximation. As this limit is frequently imposed in the wave propagation analyses of thermoacoustic devices, it is critical to investigate the physical connections of such a model to more realistic finite-length pulse tube configurations, which we do here. The mean flow is quiescent with an analytic mean temperature profile that still models the necessary physical details of the hot heat exchanger and regenerator. The computed thermoacoustic oscillations are found to be globally stable, approaching neutral stability conditions at the narrow tube limit. In finite-length tubes, three distinct types of modes are identified and analyzed. Here, within a linear framework, radial modes do appear to act as key enablers for longitudinal modes to be the primary carriers of acoustic energy from the pulse tube section, while the identified boundary modes, essentially numerical constructs, are ignored in the analysis. Further, a disturbance energy-based efficiency metric is constructed that provides mechanistic understanding of some of the key parameters in pulse tube operation. For finite-length tubes, it shows oscillations of the first asymmetric mode to be the most efficient, while the axisymmetric perturbations dominate for longer tubes that eventually lead to the idealized plane wave propagation. | ||
| 650 | 4 | |a Thermoacoustics | |
| 650 | 4 | |a Global stability | |
| 650 | 4 | |a Linear hydrodynamic stability | |
| 650 | 4 | |a Disturbance energy | |
| 650 | 4 | |a Energy efficiency | |
| 700 | 1 | |a Samanta, Arnab |0 (orcid)0000-0002-2346-6685 |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Theoretical and computational fluid dynamics |d Springer Berlin Heidelberg, 1989 |g 33(2019), 5 vom: 10. Aug., Seite 433-461 |w (DE-627)130799521 |w (DE-600)1007949-X |w (DE-576)023042370 |x 0935-4964 |7 nnns |
| 773 | 1 | 8 | |g volume:33 |g year:2019 |g number:5 |g day:10 |g month:08 |g pages:433-461 |
| 856 | 4 | 1 | |u https://doi.org/10.1007/s00162-019-00501-2 |z lizenzpflichtig |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a SYSFLAG_A | ||
| 912 | |a GBV_OLC | ||
| 912 | |a SSG-OLC-TEC | ||
| 912 | |a SSG-OLC-PHY | ||
| 912 | |a SSG-OLC-MAT | ||
| 912 | |a SSG-OPC-MAT | ||
| 912 | |a GBV_ILN_20 | ||
| 912 | |a GBV_ILN_70 | ||
| 912 | |a GBV_ILN_267 | ||
| 912 | |a GBV_ILN_2018 | ||
| 912 | |a GBV_ILN_4277 | ||
| 951 | |a AR | ||
| 952 | |d 33 |j 2019 |e 5 |b 10 |c 08 |h 433-461 | ||
| author_variant |
s k sk a s as |
|---|---|
| matchkey_str |
article:09354964:2019----::lblhrocutcsiltosnteml |
| hierarchy_sort_str |
2019 |
| publishDate |
2019 |
| allfields |
10.1007/s00162-019-00501-2 doi (DE-627)OLC2071167287 (DE-He213)s00162-019-00501-2-p DE-627 ger DE-627 rakwb eng 530 620 VZ 510 530 VZ Kumar, Saravana verfasserin aut Global thermoacoustic oscillations in a thermally driven pulse tube 2019 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract We obtain linearized, BiGlobal thermoacoustic solutions in a pulse tube driven via an imposed mean temperature gradient. Here, the pulse tube is treated as a key unit of a thermoacoustic heat engine, in which the conversion of thermal energy to useful acoustic fluctuations occurs. A primary goal of this work is to understand the hydrodynamic efficiency of the energy conversion process and how it depends upon some of the important operating parameters, including the geometry of the device which in the limit of long length-to-diameter ratio approaches the so-called narrow tube approximation. As this limit is frequently imposed in the wave propagation analyses of thermoacoustic devices, it is critical to investigate the physical connections of such a model to more realistic finite-length pulse tube configurations, which we do here. The mean flow is quiescent with an analytic mean temperature profile that still models the necessary physical details of the hot heat exchanger and regenerator. The computed thermoacoustic oscillations are found to be globally stable, approaching neutral stability conditions at the narrow tube limit. In finite-length tubes, three distinct types of modes are identified and analyzed. Here, within a linear framework, radial modes do appear to act as key enablers for longitudinal modes to be the primary carriers of acoustic energy from the pulse tube section, while the identified boundary modes, essentially numerical constructs, are ignored in the analysis. Further, a disturbance energy-based efficiency metric is constructed that provides mechanistic understanding of some of the key parameters in pulse tube operation. For finite-length tubes, it shows oscillations of the first asymmetric mode to be the most efficient, while the axisymmetric perturbations dominate for longer tubes that eventually lead to the idealized plane wave propagation. Thermoacoustics Global stability Linear hydrodynamic stability Disturbance energy Energy efficiency Samanta, Arnab (orcid)0000-0002-2346-6685 aut Enthalten in Theoretical and computational fluid dynamics Springer Berlin Heidelberg, 1989 33(2019), 5 vom: 10. Aug., Seite 433-461 (DE-627)130799521 (DE-600)1007949-X (DE-576)023042370 0935-4964 nnns volume:33 year:2019 number:5 day:10 month:08 pages:433-461 https://doi.org/10.1007/s00162-019-00501-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY SSG-OLC-MAT SSG-OPC-MAT GBV_ILN_20 GBV_ILN_70 GBV_ILN_267 GBV_ILN_2018 GBV_ILN_4277 AR 33 2019 5 10 08 433-461 |
| spelling |
10.1007/s00162-019-00501-2 doi (DE-627)OLC2071167287 (DE-He213)s00162-019-00501-2-p DE-627 ger DE-627 rakwb eng 530 620 VZ 510 530 VZ Kumar, Saravana verfasserin aut Global thermoacoustic oscillations in a thermally driven pulse tube 2019 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract We obtain linearized, BiGlobal thermoacoustic solutions in a pulse tube driven via an imposed mean temperature gradient. Here, the pulse tube is treated as a key unit of a thermoacoustic heat engine, in which the conversion of thermal energy to useful acoustic fluctuations occurs. A primary goal of this work is to understand the hydrodynamic efficiency of the energy conversion process and how it depends upon some of the important operating parameters, including the geometry of the device which in the limit of long length-to-diameter ratio approaches the so-called narrow tube approximation. As this limit is frequently imposed in the wave propagation analyses of thermoacoustic devices, it is critical to investigate the physical connections of such a model to more realistic finite-length pulse tube configurations, which we do here. The mean flow is quiescent with an analytic mean temperature profile that still models the necessary physical details of the hot heat exchanger and regenerator. The computed thermoacoustic oscillations are found to be globally stable, approaching neutral stability conditions at the narrow tube limit. In finite-length tubes, three distinct types of modes are identified and analyzed. Here, within a linear framework, radial modes do appear to act as key enablers for longitudinal modes to be the primary carriers of acoustic energy from the pulse tube section, while the identified boundary modes, essentially numerical constructs, are ignored in the analysis. Further, a disturbance energy-based efficiency metric is constructed that provides mechanistic understanding of some of the key parameters in pulse tube operation. For finite-length tubes, it shows oscillations of the first asymmetric mode to be the most efficient, while the axisymmetric perturbations dominate for longer tubes that eventually lead to the idealized plane wave propagation. Thermoacoustics Global stability Linear hydrodynamic stability Disturbance energy Energy efficiency Samanta, Arnab (orcid)0000-0002-2346-6685 aut Enthalten in Theoretical and computational fluid dynamics Springer Berlin Heidelberg, 1989 33(2019), 5 vom: 10. Aug., Seite 433-461 (DE-627)130799521 (DE-600)1007949-X (DE-576)023042370 0935-4964 nnns volume:33 year:2019 number:5 day:10 month:08 pages:433-461 https://doi.org/10.1007/s00162-019-00501-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY SSG-OLC-MAT SSG-OPC-MAT GBV_ILN_20 GBV_ILN_70 GBV_ILN_267 GBV_ILN_2018 GBV_ILN_4277 AR 33 2019 5 10 08 433-461 |
| allfields_unstemmed |
10.1007/s00162-019-00501-2 doi (DE-627)OLC2071167287 (DE-He213)s00162-019-00501-2-p DE-627 ger DE-627 rakwb eng 530 620 VZ 510 530 VZ Kumar, Saravana verfasserin aut Global thermoacoustic oscillations in a thermally driven pulse tube 2019 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract We obtain linearized, BiGlobal thermoacoustic solutions in a pulse tube driven via an imposed mean temperature gradient. Here, the pulse tube is treated as a key unit of a thermoacoustic heat engine, in which the conversion of thermal energy to useful acoustic fluctuations occurs. A primary goal of this work is to understand the hydrodynamic efficiency of the energy conversion process and how it depends upon some of the important operating parameters, including the geometry of the device which in the limit of long length-to-diameter ratio approaches the so-called narrow tube approximation. As this limit is frequently imposed in the wave propagation analyses of thermoacoustic devices, it is critical to investigate the physical connections of such a model to more realistic finite-length pulse tube configurations, which we do here. The mean flow is quiescent with an analytic mean temperature profile that still models the necessary physical details of the hot heat exchanger and regenerator. The computed thermoacoustic oscillations are found to be globally stable, approaching neutral stability conditions at the narrow tube limit. In finite-length tubes, three distinct types of modes are identified and analyzed. Here, within a linear framework, radial modes do appear to act as key enablers for longitudinal modes to be the primary carriers of acoustic energy from the pulse tube section, while the identified boundary modes, essentially numerical constructs, are ignored in the analysis. Further, a disturbance energy-based efficiency metric is constructed that provides mechanistic understanding of some of the key parameters in pulse tube operation. For finite-length tubes, it shows oscillations of the first asymmetric mode to be the most efficient, while the axisymmetric perturbations dominate for longer tubes that eventually lead to the idealized plane wave propagation. Thermoacoustics Global stability Linear hydrodynamic stability Disturbance energy Energy efficiency Samanta, Arnab (orcid)0000-0002-2346-6685 aut Enthalten in Theoretical and computational fluid dynamics Springer Berlin Heidelberg, 1989 33(2019), 5 vom: 10. Aug., Seite 433-461 (DE-627)130799521 (DE-600)1007949-X (DE-576)023042370 0935-4964 nnns volume:33 year:2019 number:5 day:10 month:08 pages:433-461 https://doi.org/10.1007/s00162-019-00501-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY SSG-OLC-MAT SSG-OPC-MAT GBV_ILN_20 GBV_ILN_70 GBV_ILN_267 GBV_ILN_2018 GBV_ILN_4277 AR 33 2019 5 10 08 433-461 |
| allfieldsGer |
10.1007/s00162-019-00501-2 doi (DE-627)OLC2071167287 (DE-He213)s00162-019-00501-2-p DE-627 ger DE-627 rakwb eng 530 620 VZ 510 530 VZ Kumar, Saravana verfasserin aut Global thermoacoustic oscillations in a thermally driven pulse tube 2019 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract We obtain linearized, BiGlobal thermoacoustic solutions in a pulse tube driven via an imposed mean temperature gradient. Here, the pulse tube is treated as a key unit of a thermoacoustic heat engine, in which the conversion of thermal energy to useful acoustic fluctuations occurs. A primary goal of this work is to understand the hydrodynamic efficiency of the energy conversion process and how it depends upon some of the important operating parameters, including the geometry of the device which in the limit of long length-to-diameter ratio approaches the so-called narrow tube approximation. As this limit is frequently imposed in the wave propagation analyses of thermoacoustic devices, it is critical to investigate the physical connections of such a model to more realistic finite-length pulse tube configurations, which we do here. The mean flow is quiescent with an analytic mean temperature profile that still models the necessary physical details of the hot heat exchanger and regenerator. The computed thermoacoustic oscillations are found to be globally stable, approaching neutral stability conditions at the narrow tube limit. In finite-length tubes, three distinct types of modes are identified and analyzed. Here, within a linear framework, radial modes do appear to act as key enablers for longitudinal modes to be the primary carriers of acoustic energy from the pulse tube section, while the identified boundary modes, essentially numerical constructs, are ignored in the analysis. Further, a disturbance energy-based efficiency metric is constructed that provides mechanistic understanding of some of the key parameters in pulse tube operation. For finite-length tubes, it shows oscillations of the first asymmetric mode to be the most efficient, while the axisymmetric perturbations dominate for longer tubes that eventually lead to the idealized plane wave propagation. Thermoacoustics Global stability Linear hydrodynamic stability Disturbance energy Energy efficiency Samanta, Arnab (orcid)0000-0002-2346-6685 aut Enthalten in Theoretical and computational fluid dynamics Springer Berlin Heidelberg, 1989 33(2019), 5 vom: 10. Aug., Seite 433-461 (DE-627)130799521 (DE-600)1007949-X (DE-576)023042370 0935-4964 nnns volume:33 year:2019 number:5 day:10 month:08 pages:433-461 https://doi.org/10.1007/s00162-019-00501-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY SSG-OLC-MAT SSG-OPC-MAT GBV_ILN_20 GBV_ILN_70 GBV_ILN_267 GBV_ILN_2018 GBV_ILN_4277 AR 33 2019 5 10 08 433-461 |
| allfieldsSound |
10.1007/s00162-019-00501-2 doi (DE-627)OLC2071167287 (DE-He213)s00162-019-00501-2-p DE-627 ger DE-627 rakwb eng 530 620 VZ 510 530 VZ Kumar, Saravana verfasserin aut Global thermoacoustic oscillations in a thermally driven pulse tube 2019 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract We obtain linearized, BiGlobal thermoacoustic solutions in a pulse tube driven via an imposed mean temperature gradient. Here, the pulse tube is treated as a key unit of a thermoacoustic heat engine, in which the conversion of thermal energy to useful acoustic fluctuations occurs. A primary goal of this work is to understand the hydrodynamic efficiency of the energy conversion process and how it depends upon some of the important operating parameters, including the geometry of the device which in the limit of long length-to-diameter ratio approaches the so-called narrow tube approximation. As this limit is frequently imposed in the wave propagation analyses of thermoacoustic devices, it is critical to investigate the physical connections of such a model to more realistic finite-length pulse tube configurations, which we do here. The mean flow is quiescent with an analytic mean temperature profile that still models the necessary physical details of the hot heat exchanger and regenerator. The computed thermoacoustic oscillations are found to be globally stable, approaching neutral stability conditions at the narrow tube limit. In finite-length tubes, three distinct types of modes are identified and analyzed. Here, within a linear framework, radial modes do appear to act as key enablers for longitudinal modes to be the primary carriers of acoustic energy from the pulse tube section, while the identified boundary modes, essentially numerical constructs, are ignored in the analysis. Further, a disturbance energy-based efficiency metric is constructed that provides mechanistic understanding of some of the key parameters in pulse tube operation. For finite-length tubes, it shows oscillations of the first asymmetric mode to be the most efficient, while the axisymmetric perturbations dominate for longer tubes that eventually lead to the idealized plane wave propagation. Thermoacoustics Global stability Linear hydrodynamic stability Disturbance energy Energy efficiency Samanta, Arnab (orcid)0000-0002-2346-6685 aut Enthalten in Theoretical and computational fluid dynamics Springer Berlin Heidelberg, 1989 33(2019), 5 vom: 10. Aug., Seite 433-461 (DE-627)130799521 (DE-600)1007949-X (DE-576)023042370 0935-4964 nnns volume:33 year:2019 number:5 day:10 month:08 pages:433-461 https://doi.org/10.1007/s00162-019-00501-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY SSG-OLC-MAT SSG-OPC-MAT GBV_ILN_20 GBV_ILN_70 GBV_ILN_267 GBV_ILN_2018 GBV_ILN_4277 AR 33 2019 5 10 08 433-461 |
| language |
English |
| source |
Enthalten in Theoretical and computational fluid dynamics 33(2019), 5 vom: 10. Aug., Seite 433-461 volume:33 year:2019 number:5 day:10 month:08 pages:433-461 |
| sourceStr |
Enthalten in Theoretical and computational fluid dynamics 33(2019), 5 vom: 10. Aug., Seite 433-461 volume:33 year:2019 number:5 day:10 month:08 pages:433-461 |
| format_phy_str_mv |
Article |
| institution |
findex.gbv.de |
| topic_facet |
Thermoacoustics Global stability Linear hydrodynamic stability Disturbance energy Energy efficiency |
| dewey-raw |
530 |
| isfreeaccess_bool |
false |
| container_title |
Theoretical and computational fluid dynamics |
| authorswithroles_txt_mv |
Kumar, Saravana @@aut@@ Samanta, Arnab @@aut@@ |
| publishDateDaySort_date |
2019-08-10T00:00:00Z |
| hierarchy_top_id |
130799521 |
| dewey-sort |
3530 |
| id |
OLC2071167287 |
| language_de |
englisch |
| fullrecord |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">OLC2071167287</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230401070904.0</controlfield><controlfield tag="007">tu</controlfield><controlfield tag="008">200820s2019 xx ||||| 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1007/s00162-019-00501-2</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)OLC2071167287</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-He213)s00162-019-00501-2-p</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">530</subfield><subfield code="a">620</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">510</subfield><subfield code="a">530</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Kumar, Saravana</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Global thermoacoustic oscillations in a thermally driven pulse tube</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2019</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">ohne Hilfsmittel zu benutzen</subfield><subfield code="b">n</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Band</subfield><subfield code="b">nc</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">© Springer-Verlag GmbH Germany, part of Springer Nature 2019</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract We obtain linearized, BiGlobal thermoacoustic solutions in a pulse tube driven via an imposed mean temperature gradient. Here, the pulse tube is treated as a key unit of a thermoacoustic heat engine, in which the conversion of thermal energy to useful acoustic fluctuations occurs. A primary goal of this work is to understand the hydrodynamic efficiency of the energy conversion process and how it depends upon some of the important operating parameters, including the geometry of the device which in the limit of long length-to-diameter ratio approaches the so-called narrow tube approximation. As this limit is frequently imposed in the wave propagation analyses of thermoacoustic devices, it is critical to investigate the physical connections of such a model to more realistic finite-length pulse tube configurations, which we do here. The mean flow is quiescent with an analytic mean temperature profile that still models the necessary physical details of the hot heat exchanger and regenerator. The computed thermoacoustic oscillations are found to be globally stable, approaching neutral stability conditions at the narrow tube limit. In finite-length tubes, three distinct types of modes are identified and analyzed. Here, within a linear framework, radial modes do appear to act as key enablers for longitudinal modes to be the primary carriers of acoustic energy from the pulse tube section, while the identified boundary modes, essentially numerical constructs, are ignored in the analysis. Further, a disturbance energy-based efficiency metric is constructed that provides mechanistic understanding of some of the key parameters in pulse tube operation. For finite-length tubes, it shows oscillations of the first asymmetric mode to be the most efficient, while the axisymmetric perturbations dominate for longer tubes that eventually lead to the idealized plane wave propagation.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Thermoacoustics</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Global stability</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Linear hydrodynamic stability</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Disturbance energy</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Energy efficiency</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Samanta, Arnab</subfield><subfield code="0">(orcid)0000-0002-2346-6685</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Theoretical and computational fluid dynamics</subfield><subfield code="d">Springer Berlin Heidelberg, 1989</subfield><subfield code="g">33(2019), 5 vom: 10. Aug., Seite 433-461</subfield><subfield code="w">(DE-627)130799521</subfield><subfield code="w">(DE-600)1007949-X</subfield><subfield code="w">(DE-576)023042370</subfield><subfield code="x">0935-4964</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:33</subfield><subfield code="g">year:2019</subfield><subfield code="g">number:5</subfield><subfield code="g">day:10</subfield><subfield code="g">month:08</subfield><subfield code="g">pages:433-461</subfield></datafield><datafield tag="856" ind1="4" ind2="1"><subfield code="u">https://doi.org/10.1007/s00162-019-00501-2</subfield><subfield code="z">lizenzpflichtig</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_OLC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-TEC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-PHY</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-MAT</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OPC-MAT</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_20</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_70</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_267</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2018</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4277</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">33</subfield><subfield code="j">2019</subfield><subfield code="e">5</subfield><subfield code="b">10</subfield><subfield code="c">08</subfield><subfield code="h">433-461</subfield></datafield></record></collection>
|
| author |
Kumar, Saravana |
| spellingShingle |
Kumar, Saravana ddc 530 ddc 510 misc Thermoacoustics misc Global stability misc Linear hydrodynamic stability misc Disturbance energy misc Energy efficiency Global thermoacoustic oscillations in a thermally driven pulse tube |
| authorStr |
Kumar, Saravana |
| ppnlink_with_tag_str_mv |
@@773@@(DE-627)130799521 |
| format |
Article |
| dewey-ones |
530 - Physics 620 - Engineering & allied operations 510 - Mathematics |
| delete_txt_mv |
keep |
| author_role |
aut aut |
| collection |
OLC |
| remote_str |
false |
| illustrated |
Not Illustrated |
| issn |
0935-4964 |
| topic_title |
530 620 VZ 510 530 VZ Global thermoacoustic oscillations in a thermally driven pulse tube Thermoacoustics Global stability Linear hydrodynamic stability Disturbance energy Energy efficiency |
| topic |
ddc 530 ddc 510 misc Thermoacoustics misc Global stability misc Linear hydrodynamic stability misc Disturbance energy misc Energy efficiency |
| topic_unstemmed |
ddc 530 ddc 510 misc Thermoacoustics misc Global stability misc Linear hydrodynamic stability misc Disturbance energy misc Energy efficiency |
| topic_browse |
ddc 530 ddc 510 misc Thermoacoustics misc Global stability misc Linear hydrodynamic stability misc Disturbance energy misc Energy efficiency |
| format_facet |
Aufsätze Gedruckte Aufsätze |
| format_main_str_mv |
Text Zeitschrift/Artikel |
| carriertype_str_mv |
nc |
| hierarchy_parent_title |
Theoretical and computational fluid dynamics |
| hierarchy_parent_id |
130799521 |
| dewey-tens |
530 - Physics 620 - Engineering 510 - Mathematics |
| hierarchy_top_title |
Theoretical and computational fluid dynamics |
| isfreeaccess_txt |
false |
| familylinks_str_mv |
(DE-627)130799521 (DE-600)1007949-X (DE-576)023042370 |
| title |
Global thermoacoustic oscillations in a thermally driven pulse tube |
| ctrlnum |
(DE-627)OLC2071167287 (DE-He213)s00162-019-00501-2-p |
| title_full |
Global thermoacoustic oscillations in a thermally driven pulse tube |
| author_sort |
Kumar, Saravana |
| journal |
Theoretical and computational fluid dynamics |
| journalStr |
Theoretical and computational fluid dynamics |
| lang_code |
eng |
| isOA_bool |
false |
| dewey-hundreds |
500 - Science 600 - Technology |
| recordtype |
marc |
| publishDateSort |
2019 |
| contenttype_str_mv |
txt |
| container_start_page |
433 |
| author_browse |
Kumar, Saravana Samanta, Arnab |
| container_volume |
33 |
| class |
530 620 VZ 510 530 VZ |
| format_se |
Aufsätze |
| author-letter |
Kumar, Saravana |
| doi_str_mv |
10.1007/s00162-019-00501-2 |
| normlink |
(ORCID)0000-0002-2346-6685 |
| normlink_prefix_str_mv |
(orcid)0000-0002-2346-6685 |
| dewey-full |
530 620 510 |
| title_sort |
global thermoacoustic oscillations in a thermally driven pulse tube |
| title_auth |
Global thermoacoustic oscillations in a thermally driven pulse tube |
| abstract |
Abstract We obtain linearized, BiGlobal thermoacoustic solutions in a pulse tube driven via an imposed mean temperature gradient. Here, the pulse tube is treated as a key unit of a thermoacoustic heat engine, in which the conversion of thermal energy to useful acoustic fluctuations occurs. A primary goal of this work is to understand the hydrodynamic efficiency of the energy conversion process and how it depends upon some of the important operating parameters, including the geometry of the device which in the limit of long length-to-diameter ratio approaches the so-called narrow tube approximation. As this limit is frequently imposed in the wave propagation analyses of thermoacoustic devices, it is critical to investigate the physical connections of such a model to more realistic finite-length pulse tube configurations, which we do here. The mean flow is quiescent with an analytic mean temperature profile that still models the necessary physical details of the hot heat exchanger and regenerator. The computed thermoacoustic oscillations are found to be globally stable, approaching neutral stability conditions at the narrow tube limit. In finite-length tubes, three distinct types of modes are identified and analyzed. Here, within a linear framework, radial modes do appear to act as key enablers for longitudinal modes to be the primary carriers of acoustic energy from the pulse tube section, while the identified boundary modes, essentially numerical constructs, are ignored in the analysis. Further, a disturbance energy-based efficiency metric is constructed that provides mechanistic understanding of some of the key parameters in pulse tube operation. For finite-length tubes, it shows oscillations of the first asymmetric mode to be the most efficient, while the axisymmetric perturbations dominate for longer tubes that eventually lead to the idealized plane wave propagation. © Springer-Verlag GmbH Germany, part of Springer Nature 2019 |
| abstractGer |
Abstract We obtain linearized, BiGlobal thermoacoustic solutions in a pulse tube driven via an imposed mean temperature gradient. Here, the pulse tube is treated as a key unit of a thermoacoustic heat engine, in which the conversion of thermal energy to useful acoustic fluctuations occurs. A primary goal of this work is to understand the hydrodynamic efficiency of the energy conversion process and how it depends upon some of the important operating parameters, including the geometry of the device which in the limit of long length-to-diameter ratio approaches the so-called narrow tube approximation. As this limit is frequently imposed in the wave propagation analyses of thermoacoustic devices, it is critical to investigate the physical connections of such a model to more realistic finite-length pulse tube configurations, which we do here. The mean flow is quiescent with an analytic mean temperature profile that still models the necessary physical details of the hot heat exchanger and regenerator. The computed thermoacoustic oscillations are found to be globally stable, approaching neutral stability conditions at the narrow tube limit. In finite-length tubes, three distinct types of modes are identified and analyzed. Here, within a linear framework, radial modes do appear to act as key enablers for longitudinal modes to be the primary carriers of acoustic energy from the pulse tube section, while the identified boundary modes, essentially numerical constructs, are ignored in the analysis. Further, a disturbance energy-based efficiency metric is constructed that provides mechanistic understanding of some of the key parameters in pulse tube operation. For finite-length tubes, it shows oscillations of the first asymmetric mode to be the most efficient, while the axisymmetric perturbations dominate for longer tubes that eventually lead to the idealized plane wave propagation. © Springer-Verlag GmbH Germany, part of Springer Nature 2019 |
| abstract_unstemmed |
Abstract We obtain linearized, BiGlobal thermoacoustic solutions in a pulse tube driven via an imposed mean temperature gradient. Here, the pulse tube is treated as a key unit of a thermoacoustic heat engine, in which the conversion of thermal energy to useful acoustic fluctuations occurs. A primary goal of this work is to understand the hydrodynamic efficiency of the energy conversion process and how it depends upon some of the important operating parameters, including the geometry of the device which in the limit of long length-to-diameter ratio approaches the so-called narrow tube approximation. As this limit is frequently imposed in the wave propagation analyses of thermoacoustic devices, it is critical to investigate the physical connections of such a model to more realistic finite-length pulse tube configurations, which we do here. The mean flow is quiescent with an analytic mean temperature profile that still models the necessary physical details of the hot heat exchanger and regenerator. The computed thermoacoustic oscillations are found to be globally stable, approaching neutral stability conditions at the narrow tube limit. In finite-length tubes, three distinct types of modes are identified and analyzed. Here, within a linear framework, radial modes do appear to act as key enablers for longitudinal modes to be the primary carriers of acoustic energy from the pulse tube section, while the identified boundary modes, essentially numerical constructs, are ignored in the analysis. Further, a disturbance energy-based efficiency metric is constructed that provides mechanistic understanding of some of the key parameters in pulse tube operation. For finite-length tubes, it shows oscillations of the first asymmetric mode to be the most efficient, while the axisymmetric perturbations dominate for longer tubes that eventually lead to the idealized plane wave propagation. © Springer-Verlag GmbH Germany, part of Springer Nature 2019 |
| collection_details |
GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY SSG-OLC-MAT SSG-OPC-MAT GBV_ILN_20 GBV_ILN_70 GBV_ILN_267 GBV_ILN_2018 GBV_ILN_4277 |
| container_issue |
5 |
| title_short |
Global thermoacoustic oscillations in a thermally driven pulse tube |
| url |
https://doi.org/10.1007/s00162-019-00501-2 |
| remote_bool |
false |
| author2 |
Samanta, Arnab |
| author2Str |
Samanta, Arnab |
| ppnlink |
130799521 |
| mediatype_str_mv |
n |
| isOA_txt |
false |
| hochschulschrift_bool |
false |
| doi_str |
10.1007/s00162-019-00501-2 |
| up_date |
2024-07-04T03:06:35.129Z |
| _version_ |
1803616146036883456 |
| fullrecord_marcxml |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">OLC2071167287</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230401070904.0</controlfield><controlfield tag="007">tu</controlfield><controlfield tag="008">200820s2019 xx ||||| 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1007/s00162-019-00501-2</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)OLC2071167287</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-He213)s00162-019-00501-2-p</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">530</subfield><subfield code="a">620</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">510</subfield><subfield code="a">530</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Kumar, Saravana</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Global thermoacoustic oscillations in a thermally driven pulse tube</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2019</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">ohne Hilfsmittel zu benutzen</subfield><subfield code="b">n</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Band</subfield><subfield code="b">nc</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">© Springer-Verlag GmbH Germany, part of Springer Nature 2019</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract We obtain linearized, BiGlobal thermoacoustic solutions in a pulse tube driven via an imposed mean temperature gradient. Here, the pulse tube is treated as a key unit of a thermoacoustic heat engine, in which the conversion of thermal energy to useful acoustic fluctuations occurs. A primary goal of this work is to understand the hydrodynamic efficiency of the energy conversion process and how it depends upon some of the important operating parameters, including the geometry of the device which in the limit of long length-to-diameter ratio approaches the so-called narrow tube approximation. As this limit is frequently imposed in the wave propagation analyses of thermoacoustic devices, it is critical to investigate the physical connections of such a model to more realistic finite-length pulse tube configurations, which we do here. The mean flow is quiescent with an analytic mean temperature profile that still models the necessary physical details of the hot heat exchanger and regenerator. The computed thermoacoustic oscillations are found to be globally stable, approaching neutral stability conditions at the narrow tube limit. In finite-length tubes, three distinct types of modes are identified and analyzed. Here, within a linear framework, radial modes do appear to act as key enablers for longitudinal modes to be the primary carriers of acoustic energy from the pulse tube section, while the identified boundary modes, essentially numerical constructs, are ignored in the analysis. Further, a disturbance energy-based efficiency metric is constructed that provides mechanistic understanding of some of the key parameters in pulse tube operation. For finite-length tubes, it shows oscillations of the first asymmetric mode to be the most efficient, while the axisymmetric perturbations dominate for longer tubes that eventually lead to the idealized plane wave propagation.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Thermoacoustics</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Global stability</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Linear hydrodynamic stability</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Disturbance energy</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Energy efficiency</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Samanta, Arnab</subfield><subfield code="0">(orcid)0000-0002-2346-6685</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Theoretical and computational fluid dynamics</subfield><subfield code="d">Springer Berlin Heidelberg, 1989</subfield><subfield code="g">33(2019), 5 vom: 10. Aug., Seite 433-461</subfield><subfield code="w">(DE-627)130799521</subfield><subfield code="w">(DE-600)1007949-X</subfield><subfield code="w">(DE-576)023042370</subfield><subfield code="x">0935-4964</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:33</subfield><subfield code="g">year:2019</subfield><subfield code="g">number:5</subfield><subfield code="g">day:10</subfield><subfield code="g">month:08</subfield><subfield code="g">pages:433-461</subfield></datafield><datafield tag="856" ind1="4" ind2="1"><subfield code="u">https://doi.org/10.1007/s00162-019-00501-2</subfield><subfield code="z">lizenzpflichtig</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_OLC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-TEC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-PHY</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-MAT</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OPC-MAT</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_20</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_70</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_267</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2018</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4277</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">33</subfield><subfield code="j">2019</subfield><subfield code="e">5</subfield><subfield code="b">10</subfield><subfield code="c">08</subfield><subfield code="h">433-461</subfield></datafield></record></collection>
|
| score |
7.4013615 |