Effect of diameter ratio on the flow-induced vibrations of two rigidly coupled circular cylinders in tandem
We present an experimental study on the effects on the vortex-induced vibrations (VIV), of the relative size of two rigidly connected circular cylinders in a tandem arrangement, with a fixed centre-to-centre separation of 1 . 3 D , where D represents the diameter of the upstream cylinder. This separ...
Ausführliche Beschreibung
Autor*in: |
Huera-Huarte, F.J. [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
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2019transfer abstract |
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Umfang: |
12 |
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Übergeordnetes Werk: |
Enthalten in: Safety and usefulness of minimally-invasive biopsy of minor salivary glands in internal medicine: Searching for systemic infiltrative diseases - Brito-Zerón, P. ELSEVIER, 2013, Orlando, Fla |
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Übergeordnetes Werk: |
volume:89 ; year:2019 ; pages:96-107 ; extent:12 |
Links: |
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DOI / URN: |
10.1016/j.jfluidstructs.2019.04.006 |
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Katalog-ID: |
ELV047712643 |
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245 | 1 | 0 | |a Effect of diameter ratio on the flow-induced vibrations of two rigidly coupled circular cylinders in tandem |
264 | 1 | |c 2019transfer abstract | |
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520 | |a We present an experimental study on the effects on the vortex-induced vibrations (VIV), of the relative size of two rigidly connected circular cylinders in a tandem arrangement, with a fixed centre-to-centre separation of 1 . 3 D , where D represents the diameter of the upstream cylinder. This separation distance was selected after the results obtained by Jiménez-González and Huera-Huarte (2017), where a high VIV sensitivity region was identified at such location in the wake of a cylinder oscillating in cross-flow. The flow-induced response of the system, which has one degree of freedom, has been analysed for several values of the diameter ratio d ∕ D ≤ 1 , where d is the diameter of the downstream cylinder. As the value of d ∕ D increases, the VIV response is attenuated, it being associated with important reductions in the transverse and in-line force coefficients. In addition, Digital Particle Image Velocimetry (DPIV) has allowed us to study the changes in the near wake and forcing introduced by the presence of different downstream cylinders. Thus, the flow dynamics is clearly driven by the relative size of the cylinders, and therefore, the size of the gap region. In particular, for small values of d ∕ D , a moderate disruption in the vortex formation and shear layer interaction of the wake of the upstream cylinder takes place. For intermediate values of d ∕ D , the downstream cylinder generates a strong local wake that results in the shedding of two co-rotating vortices at each side of the system, while markedly undermining the shedding from the upstream cylinder. In the limit of d ∕ D = 1 , a stagnant region develops in the gap between the cylinders, and the tandem behaves as a single bluff body, featuring a very attenuated flow-induced response. | ||
520 | |a We present an experimental study on the effects on the vortex-induced vibrations (VIV), of the relative size of two rigidly connected circular cylinders in a tandem arrangement, with a fixed centre-to-centre separation of 1 . 3 D , where D represents the diameter of the upstream cylinder. This separation distance was selected after the results obtained by Jiménez-González and Huera-Huarte (2017), where a high VIV sensitivity region was identified at such location in the wake of a cylinder oscillating in cross-flow. The flow-induced response of the system, which has one degree of freedom, has been analysed for several values of the diameter ratio d ∕ D ≤ 1 , where d is the diameter of the downstream cylinder. As the value of d ∕ D increases, the VIV response is attenuated, it being associated with important reductions in the transverse and in-line force coefficients. In addition, Digital Particle Image Velocimetry (DPIV) has allowed us to study the changes in the near wake and forcing introduced by the presence of different downstream cylinders. Thus, the flow dynamics is clearly driven by the relative size of the cylinders, and therefore, the size of the gap region. In particular, for small values of d ∕ D , a moderate disruption in the vortex formation and shear layer interaction of the wake of the upstream cylinder takes place. For intermediate values of d ∕ D , the downstream cylinder generates a strong local wake that results in the shedding of two co-rotating vortices at each side of the system, while markedly undermining the shedding from the upstream cylinder. In the limit of d ∕ D = 1 , a stagnant region develops in the gap between the cylinders, and the tandem behaves as a single bluff body, featuring a very attenuated flow-induced response. | ||
650 | 7 | |a Vortex-induced vibrations |2 Elsevier | |
650 | 7 | |a VIV |2 Elsevier | |
650 | 7 | |a VIV sensitivity |2 Elsevier | |
650 | 7 | |a Tandem cylinders |2 Elsevier | |
650 | 7 | |a Vortex-shedding |2 Elsevier | |
700 | 1 | |a Jiménez-González, J.I. |4 oth | |
773 | 0 | 8 | |i Enthalten in |n Elsevier |a Brito-Zerón, P. ELSEVIER |t Safety and usefulness of minimally-invasive biopsy of minor salivary glands in internal medicine: Searching for systemic infiltrative diseases |d 2013 |g Orlando, Fla |w (DE-627)ELV017003725 |
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10.1016/j.jfluidstructs.2019.04.006 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000000817.pica (DE-627)ELV047712643 (ELSEVIER)S0889-9746(18)30722-9 DE-627 ger DE-627 rakwb eng 610 VZ 550 VZ 38.48 bkl Huera-Huarte, F.J. verfasserin aut Effect of diameter ratio on the flow-induced vibrations of two rigidly coupled circular cylinders in tandem 2019transfer abstract 12 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We present an experimental study on the effects on the vortex-induced vibrations (VIV), of the relative size of two rigidly connected circular cylinders in a tandem arrangement, with a fixed centre-to-centre separation of 1 . 3 D , where D represents the diameter of the upstream cylinder. This separation distance was selected after the results obtained by Jiménez-González and Huera-Huarte (2017), where a high VIV sensitivity region was identified at such location in the wake of a cylinder oscillating in cross-flow. The flow-induced response of the system, which has one degree of freedom, has been analysed for several values of the diameter ratio d ∕ D ≤ 1 , where d is the diameter of the downstream cylinder. As the value of d ∕ D increases, the VIV response is attenuated, it being associated with important reductions in the transverse and in-line force coefficients. In addition, Digital Particle Image Velocimetry (DPIV) has allowed us to study the changes in the near wake and forcing introduced by the presence of different downstream cylinders. Thus, the flow dynamics is clearly driven by the relative size of the cylinders, and therefore, the size of the gap region. In particular, for small values of d ∕ D , a moderate disruption in the vortex formation and shear layer interaction of the wake of the upstream cylinder takes place. For intermediate values of d ∕ D , the downstream cylinder generates a strong local wake that results in the shedding of two co-rotating vortices at each side of the system, while markedly undermining the shedding from the upstream cylinder. In the limit of d ∕ D = 1 , a stagnant region develops in the gap between the cylinders, and the tandem behaves as a single bluff body, featuring a very attenuated flow-induced response. We present an experimental study on the effects on the vortex-induced vibrations (VIV), of the relative size of two rigidly connected circular cylinders in a tandem arrangement, with a fixed centre-to-centre separation of 1 . 3 D , where D represents the diameter of the upstream cylinder. This separation distance was selected after the results obtained by Jiménez-González and Huera-Huarte (2017), where a high VIV sensitivity region was identified at such location in the wake of a cylinder oscillating in cross-flow. The flow-induced response of the system, which has one degree of freedom, has been analysed for several values of the diameter ratio d ∕ D ≤ 1 , where d is the diameter of the downstream cylinder. As the value of d ∕ D increases, the VIV response is attenuated, it being associated with important reductions in the transverse and in-line force coefficients. In addition, Digital Particle Image Velocimetry (DPIV) has allowed us to study the changes in the near wake and forcing introduced by the presence of different downstream cylinders. Thus, the flow dynamics is clearly driven by the relative size of the cylinders, and therefore, the size of the gap region. In particular, for small values of d ∕ D , a moderate disruption in the vortex formation and shear layer interaction of the wake of the upstream cylinder takes place. For intermediate values of d ∕ D , the downstream cylinder generates a strong local wake that results in the shedding of two co-rotating vortices at each side of the system, while markedly undermining the shedding from the upstream cylinder. In the limit of d ∕ D = 1 , a stagnant region develops in the gap between the cylinders, and the tandem behaves as a single bluff body, featuring a very attenuated flow-induced response. Vortex-induced vibrations Elsevier VIV Elsevier VIV sensitivity Elsevier Tandem cylinders Elsevier Vortex-shedding Elsevier Jiménez-González, J.I. oth Enthalten in Elsevier Brito-Zerón, P. ELSEVIER Safety and usefulness of minimally-invasive biopsy of minor salivary glands in internal medicine: Searching for systemic infiltrative diseases 2013 Orlando, Fla (DE-627)ELV017003725 volume:89 year:2019 pages:96-107 extent:12 https://doi.org/10.1016/j.jfluidstructs.2019.04.006 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-GGO SSG-OPC-GEO 38.48 Marine Geologie VZ AR 89 2019 96-107 12 |
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10.1016/j.jfluidstructs.2019.04.006 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000000817.pica (DE-627)ELV047712643 (ELSEVIER)S0889-9746(18)30722-9 DE-627 ger DE-627 rakwb eng 610 VZ 550 VZ 38.48 bkl Huera-Huarte, F.J. verfasserin aut Effect of diameter ratio on the flow-induced vibrations of two rigidly coupled circular cylinders in tandem 2019transfer abstract 12 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We present an experimental study on the effects on the vortex-induced vibrations (VIV), of the relative size of two rigidly connected circular cylinders in a tandem arrangement, with a fixed centre-to-centre separation of 1 . 3 D , where D represents the diameter of the upstream cylinder. This separation distance was selected after the results obtained by Jiménez-González and Huera-Huarte (2017), where a high VIV sensitivity region was identified at such location in the wake of a cylinder oscillating in cross-flow. The flow-induced response of the system, which has one degree of freedom, has been analysed for several values of the diameter ratio d ∕ D ≤ 1 , where d is the diameter of the downstream cylinder. As the value of d ∕ D increases, the VIV response is attenuated, it being associated with important reductions in the transverse and in-line force coefficients. In addition, Digital Particle Image Velocimetry (DPIV) has allowed us to study the changes in the near wake and forcing introduced by the presence of different downstream cylinders. Thus, the flow dynamics is clearly driven by the relative size of the cylinders, and therefore, the size of the gap region. In particular, for small values of d ∕ D , a moderate disruption in the vortex formation and shear layer interaction of the wake of the upstream cylinder takes place. For intermediate values of d ∕ D , the downstream cylinder generates a strong local wake that results in the shedding of two co-rotating vortices at each side of the system, while markedly undermining the shedding from the upstream cylinder. In the limit of d ∕ D = 1 , a stagnant region develops in the gap between the cylinders, and the tandem behaves as a single bluff body, featuring a very attenuated flow-induced response. We present an experimental study on the effects on the vortex-induced vibrations (VIV), of the relative size of two rigidly connected circular cylinders in a tandem arrangement, with a fixed centre-to-centre separation of 1 . 3 D , where D represents the diameter of the upstream cylinder. This separation distance was selected after the results obtained by Jiménez-González and Huera-Huarte (2017), where a high VIV sensitivity region was identified at such location in the wake of a cylinder oscillating in cross-flow. The flow-induced response of the system, which has one degree of freedom, has been analysed for several values of the diameter ratio d ∕ D ≤ 1 , where d is the diameter of the downstream cylinder. As the value of d ∕ D increases, the VIV response is attenuated, it being associated with important reductions in the transverse and in-line force coefficients. In addition, Digital Particle Image Velocimetry (DPIV) has allowed us to study the changes in the near wake and forcing introduced by the presence of different downstream cylinders. Thus, the flow dynamics is clearly driven by the relative size of the cylinders, and therefore, the size of the gap region. In particular, for small values of d ∕ D , a moderate disruption in the vortex formation and shear layer interaction of the wake of the upstream cylinder takes place. For intermediate values of d ∕ D , the downstream cylinder generates a strong local wake that results in the shedding of two co-rotating vortices at each side of the system, while markedly undermining the shedding from the upstream cylinder. In the limit of d ∕ D = 1 , a stagnant region develops in the gap between the cylinders, and the tandem behaves as a single bluff body, featuring a very attenuated flow-induced response. Vortex-induced vibrations Elsevier VIV Elsevier VIV sensitivity Elsevier Tandem cylinders Elsevier Vortex-shedding Elsevier Jiménez-González, J.I. oth Enthalten in Elsevier Brito-Zerón, P. ELSEVIER Safety and usefulness of minimally-invasive biopsy of minor salivary glands in internal medicine: Searching for systemic infiltrative diseases 2013 Orlando, Fla (DE-627)ELV017003725 volume:89 year:2019 pages:96-107 extent:12 https://doi.org/10.1016/j.jfluidstructs.2019.04.006 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-GGO SSG-OPC-GEO 38.48 Marine Geologie VZ AR 89 2019 96-107 12 |
allfields_unstemmed |
10.1016/j.jfluidstructs.2019.04.006 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000000817.pica (DE-627)ELV047712643 (ELSEVIER)S0889-9746(18)30722-9 DE-627 ger DE-627 rakwb eng 610 VZ 550 VZ 38.48 bkl Huera-Huarte, F.J. verfasserin aut Effect of diameter ratio on the flow-induced vibrations of two rigidly coupled circular cylinders in tandem 2019transfer abstract 12 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We present an experimental study on the effects on the vortex-induced vibrations (VIV), of the relative size of two rigidly connected circular cylinders in a tandem arrangement, with a fixed centre-to-centre separation of 1 . 3 D , where D represents the diameter of the upstream cylinder. This separation distance was selected after the results obtained by Jiménez-González and Huera-Huarte (2017), where a high VIV sensitivity region was identified at such location in the wake of a cylinder oscillating in cross-flow. The flow-induced response of the system, which has one degree of freedom, has been analysed for several values of the diameter ratio d ∕ D ≤ 1 , where d is the diameter of the downstream cylinder. As the value of d ∕ D increases, the VIV response is attenuated, it being associated with important reductions in the transverse and in-line force coefficients. In addition, Digital Particle Image Velocimetry (DPIV) has allowed us to study the changes in the near wake and forcing introduced by the presence of different downstream cylinders. Thus, the flow dynamics is clearly driven by the relative size of the cylinders, and therefore, the size of the gap region. In particular, for small values of d ∕ D , a moderate disruption in the vortex formation and shear layer interaction of the wake of the upstream cylinder takes place. For intermediate values of d ∕ D , the downstream cylinder generates a strong local wake that results in the shedding of two co-rotating vortices at each side of the system, while markedly undermining the shedding from the upstream cylinder. In the limit of d ∕ D = 1 , a stagnant region develops in the gap between the cylinders, and the tandem behaves as a single bluff body, featuring a very attenuated flow-induced response. We present an experimental study on the effects on the vortex-induced vibrations (VIV), of the relative size of two rigidly connected circular cylinders in a tandem arrangement, with a fixed centre-to-centre separation of 1 . 3 D , where D represents the diameter of the upstream cylinder. This separation distance was selected after the results obtained by Jiménez-González and Huera-Huarte (2017), where a high VIV sensitivity region was identified at such location in the wake of a cylinder oscillating in cross-flow. The flow-induced response of the system, which has one degree of freedom, has been analysed for several values of the diameter ratio d ∕ D ≤ 1 , where d is the diameter of the downstream cylinder. As the value of d ∕ D increases, the VIV response is attenuated, it being associated with important reductions in the transverse and in-line force coefficients. In addition, Digital Particle Image Velocimetry (DPIV) has allowed us to study the changes in the near wake and forcing introduced by the presence of different downstream cylinders. Thus, the flow dynamics is clearly driven by the relative size of the cylinders, and therefore, the size of the gap region. In particular, for small values of d ∕ D , a moderate disruption in the vortex formation and shear layer interaction of the wake of the upstream cylinder takes place. For intermediate values of d ∕ D , the downstream cylinder generates a strong local wake that results in the shedding of two co-rotating vortices at each side of the system, while markedly undermining the shedding from the upstream cylinder. In the limit of d ∕ D = 1 , a stagnant region develops in the gap between the cylinders, and the tandem behaves as a single bluff body, featuring a very attenuated flow-induced response. Vortex-induced vibrations Elsevier VIV Elsevier VIV sensitivity Elsevier Tandem cylinders Elsevier Vortex-shedding Elsevier Jiménez-González, J.I. oth Enthalten in Elsevier Brito-Zerón, P. ELSEVIER Safety and usefulness of minimally-invasive biopsy of minor salivary glands in internal medicine: Searching for systemic infiltrative diseases 2013 Orlando, Fla (DE-627)ELV017003725 volume:89 year:2019 pages:96-107 extent:12 https://doi.org/10.1016/j.jfluidstructs.2019.04.006 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-GGO SSG-OPC-GEO 38.48 Marine Geologie VZ AR 89 2019 96-107 12 |
allfieldsGer |
10.1016/j.jfluidstructs.2019.04.006 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000000817.pica (DE-627)ELV047712643 (ELSEVIER)S0889-9746(18)30722-9 DE-627 ger DE-627 rakwb eng 610 VZ 550 VZ 38.48 bkl Huera-Huarte, F.J. verfasserin aut Effect of diameter ratio on the flow-induced vibrations of two rigidly coupled circular cylinders in tandem 2019transfer abstract 12 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We present an experimental study on the effects on the vortex-induced vibrations (VIV), of the relative size of two rigidly connected circular cylinders in a tandem arrangement, with a fixed centre-to-centre separation of 1 . 3 D , where D represents the diameter of the upstream cylinder. This separation distance was selected after the results obtained by Jiménez-González and Huera-Huarte (2017), where a high VIV sensitivity region was identified at such location in the wake of a cylinder oscillating in cross-flow. The flow-induced response of the system, which has one degree of freedom, has been analysed for several values of the diameter ratio d ∕ D ≤ 1 , where d is the diameter of the downstream cylinder. As the value of d ∕ D increases, the VIV response is attenuated, it being associated with important reductions in the transverse and in-line force coefficients. In addition, Digital Particle Image Velocimetry (DPIV) has allowed us to study the changes in the near wake and forcing introduced by the presence of different downstream cylinders. Thus, the flow dynamics is clearly driven by the relative size of the cylinders, and therefore, the size of the gap region. In particular, for small values of d ∕ D , a moderate disruption in the vortex formation and shear layer interaction of the wake of the upstream cylinder takes place. For intermediate values of d ∕ D , the downstream cylinder generates a strong local wake that results in the shedding of two co-rotating vortices at each side of the system, while markedly undermining the shedding from the upstream cylinder. In the limit of d ∕ D = 1 , a stagnant region develops in the gap between the cylinders, and the tandem behaves as a single bluff body, featuring a very attenuated flow-induced response. We present an experimental study on the effects on the vortex-induced vibrations (VIV), of the relative size of two rigidly connected circular cylinders in a tandem arrangement, with a fixed centre-to-centre separation of 1 . 3 D , where D represents the diameter of the upstream cylinder. This separation distance was selected after the results obtained by Jiménez-González and Huera-Huarte (2017), where a high VIV sensitivity region was identified at such location in the wake of a cylinder oscillating in cross-flow. The flow-induced response of the system, which has one degree of freedom, has been analysed for several values of the diameter ratio d ∕ D ≤ 1 , where d is the diameter of the downstream cylinder. As the value of d ∕ D increases, the VIV response is attenuated, it being associated with important reductions in the transverse and in-line force coefficients. In addition, Digital Particle Image Velocimetry (DPIV) has allowed us to study the changes in the near wake and forcing introduced by the presence of different downstream cylinders. Thus, the flow dynamics is clearly driven by the relative size of the cylinders, and therefore, the size of the gap region. In particular, for small values of d ∕ D , a moderate disruption in the vortex formation and shear layer interaction of the wake of the upstream cylinder takes place. For intermediate values of d ∕ D , the downstream cylinder generates a strong local wake that results in the shedding of two co-rotating vortices at each side of the system, while markedly undermining the shedding from the upstream cylinder. In the limit of d ∕ D = 1 , a stagnant region develops in the gap between the cylinders, and the tandem behaves as a single bluff body, featuring a very attenuated flow-induced response. Vortex-induced vibrations Elsevier VIV Elsevier VIV sensitivity Elsevier Tandem cylinders Elsevier Vortex-shedding Elsevier Jiménez-González, J.I. oth Enthalten in Elsevier Brito-Zerón, P. ELSEVIER Safety and usefulness of minimally-invasive biopsy of minor salivary glands in internal medicine: Searching for systemic infiltrative diseases 2013 Orlando, Fla (DE-627)ELV017003725 volume:89 year:2019 pages:96-107 extent:12 https://doi.org/10.1016/j.jfluidstructs.2019.04.006 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-GGO SSG-OPC-GEO 38.48 Marine Geologie VZ AR 89 2019 96-107 12 |
allfieldsSound |
10.1016/j.jfluidstructs.2019.04.006 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000000817.pica (DE-627)ELV047712643 (ELSEVIER)S0889-9746(18)30722-9 DE-627 ger DE-627 rakwb eng 610 VZ 550 VZ 38.48 bkl Huera-Huarte, F.J. verfasserin aut Effect of diameter ratio on the flow-induced vibrations of two rigidly coupled circular cylinders in tandem 2019transfer abstract 12 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We present an experimental study on the effects on the vortex-induced vibrations (VIV), of the relative size of two rigidly connected circular cylinders in a tandem arrangement, with a fixed centre-to-centre separation of 1 . 3 D , where D represents the diameter of the upstream cylinder. This separation distance was selected after the results obtained by Jiménez-González and Huera-Huarte (2017), where a high VIV sensitivity region was identified at such location in the wake of a cylinder oscillating in cross-flow. The flow-induced response of the system, which has one degree of freedom, has been analysed for several values of the diameter ratio d ∕ D ≤ 1 , where d is the diameter of the downstream cylinder. As the value of d ∕ D increases, the VIV response is attenuated, it being associated with important reductions in the transverse and in-line force coefficients. In addition, Digital Particle Image Velocimetry (DPIV) has allowed us to study the changes in the near wake and forcing introduced by the presence of different downstream cylinders. Thus, the flow dynamics is clearly driven by the relative size of the cylinders, and therefore, the size of the gap region. In particular, for small values of d ∕ D , a moderate disruption in the vortex formation and shear layer interaction of the wake of the upstream cylinder takes place. For intermediate values of d ∕ D , the downstream cylinder generates a strong local wake that results in the shedding of two co-rotating vortices at each side of the system, while markedly undermining the shedding from the upstream cylinder. In the limit of d ∕ D = 1 , a stagnant region develops in the gap between the cylinders, and the tandem behaves as a single bluff body, featuring a very attenuated flow-induced response. We present an experimental study on the effects on the vortex-induced vibrations (VIV), of the relative size of two rigidly connected circular cylinders in a tandem arrangement, with a fixed centre-to-centre separation of 1 . 3 D , where D represents the diameter of the upstream cylinder. This separation distance was selected after the results obtained by Jiménez-González and Huera-Huarte (2017), where a high VIV sensitivity region was identified at such location in the wake of a cylinder oscillating in cross-flow. The flow-induced response of the system, which has one degree of freedom, has been analysed for several values of the diameter ratio d ∕ D ≤ 1 , where d is the diameter of the downstream cylinder. As the value of d ∕ D increases, the VIV response is attenuated, it being associated with important reductions in the transverse and in-line force coefficients. In addition, Digital Particle Image Velocimetry (DPIV) has allowed us to study the changes in the near wake and forcing introduced by the presence of different downstream cylinders. Thus, the flow dynamics is clearly driven by the relative size of the cylinders, and therefore, the size of the gap region. In particular, for small values of d ∕ D , a moderate disruption in the vortex formation and shear layer interaction of the wake of the upstream cylinder takes place. For intermediate values of d ∕ D , the downstream cylinder generates a strong local wake that results in the shedding of two co-rotating vortices at each side of the system, while markedly undermining the shedding from the upstream cylinder. In the limit of d ∕ D = 1 , a stagnant region develops in the gap between the cylinders, and the tandem behaves as a single bluff body, featuring a very attenuated flow-induced response. Vortex-induced vibrations Elsevier VIV Elsevier VIV sensitivity Elsevier Tandem cylinders Elsevier Vortex-shedding Elsevier Jiménez-González, J.I. oth Enthalten in Elsevier Brito-Zerón, P. ELSEVIER Safety and usefulness of minimally-invasive biopsy of minor salivary glands in internal medicine: Searching for systemic infiltrative diseases 2013 Orlando, Fla (DE-627)ELV017003725 volume:89 year:2019 pages:96-107 extent:12 https://doi.org/10.1016/j.jfluidstructs.2019.04.006 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-GGO SSG-OPC-GEO 38.48 Marine Geologie VZ AR 89 2019 96-107 12 |
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Huera-Huarte, F.J. ddc 610 ddc 550 bkl 38.48 Elsevier Vortex-induced vibrations Elsevier VIV Elsevier VIV sensitivity Elsevier Tandem cylinders Elsevier Vortex-shedding Effect of diameter ratio on the flow-induced vibrations of two rigidly coupled circular cylinders in tandem |
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610 VZ 550 VZ 38.48 bkl Effect of diameter ratio on the flow-induced vibrations of two rigidly coupled circular cylinders in tandem Vortex-induced vibrations Elsevier VIV Elsevier VIV sensitivity Elsevier Tandem cylinders Elsevier Vortex-shedding Elsevier |
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ddc 610 ddc 550 bkl 38.48 Elsevier Vortex-induced vibrations Elsevier VIV Elsevier VIV sensitivity Elsevier Tandem cylinders Elsevier Vortex-shedding |
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effect of diameter ratio on the flow-induced vibrations of two rigidly coupled circular cylinders in tandem |
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Effect of diameter ratio on the flow-induced vibrations of two rigidly coupled circular cylinders in tandem |
abstract |
We present an experimental study on the effects on the vortex-induced vibrations (VIV), of the relative size of two rigidly connected circular cylinders in a tandem arrangement, with a fixed centre-to-centre separation of 1 . 3 D , where D represents the diameter of the upstream cylinder. This separation distance was selected after the results obtained by Jiménez-González and Huera-Huarte (2017), where a high VIV sensitivity region was identified at such location in the wake of a cylinder oscillating in cross-flow. The flow-induced response of the system, which has one degree of freedom, has been analysed for several values of the diameter ratio d ∕ D ≤ 1 , where d is the diameter of the downstream cylinder. As the value of d ∕ D increases, the VIV response is attenuated, it being associated with important reductions in the transverse and in-line force coefficients. In addition, Digital Particle Image Velocimetry (DPIV) has allowed us to study the changes in the near wake and forcing introduced by the presence of different downstream cylinders. Thus, the flow dynamics is clearly driven by the relative size of the cylinders, and therefore, the size of the gap region. In particular, for small values of d ∕ D , a moderate disruption in the vortex formation and shear layer interaction of the wake of the upstream cylinder takes place. For intermediate values of d ∕ D , the downstream cylinder generates a strong local wake that results in the shedding of two co-rotating vortices at each side of the system, while markedly undermining the shedding from the upstream cylinder. In the limit of d ∕ D = 1 , a stagnant region develops in the gap between the cylinders, and the tandem behaves as a single bluff body, featuring a very attenuated flow-induced response. |
abstractGer |
We present an experimental study on the effects on the vortex-induced vibrations (VIV), of the relative size of two rigidly connected circular cylinders in a tandem arrangement, with a fixed centre-to-centre separation of 1 . 3 D , where D represents the diameter of the upstream cylinder. This separation distance was selected after the results obtained by Jiménez-González and Huera-Huarte (2017), where a high VIV sensitivity region was identified at such location in the wake of a cylinder oscillating in cross-flow. The flow-induced response of the system, which has one degree of freedom, has been analysed for several values of the diameter ratio d ∕ D ≤ 1 , where d is the diameter of the downstream cylinder. As the value of d ∕ D increases, the VIV response is attenuated, it being associated with important reductions in the transverse and in-line force coefficients. In addition, Digital Particle Image Velocimetry (DPIV) has allowed us to study the changes in the near wake and forcing introduced by the presence of different downstream cylinders. Thus, the flow dynamics is clearly driven by the relative size of the cylinders, and therefore, the size of the gap region. In particular, for small values of d ∕ D , a moderate disruption in the vortex formation and shear layer interaction of the wake of the upstream cylinder takes place. For intermediate values of d ∕ D , the downstream cylinder generates a strong local wake that results in the shedding of two co-rotating vortices at each side of the system, while markedly undermining the shedding from the upstream cylinder. In the limit of d ∕ D = 1 , a stagnant region develops in the gap between the cylinders, and the tandem behaves as a single bluff body, featuring a very attenuated flow-induced response. |
abstract_unstemmed |
We present an experimental study on the effects on the vortex-induced vibrations (VIV), of the relative size of two rigidly connected circular cylinders in a tandem arrangement, with a fixed centre-to-centre separation of 1 . 3 D , where D represents the diameter of the upstream cylinder. This separation distance was selected after the results obtained by Jiménez-González and Huera-Huarte (2017), where a high VIV sensitivity region was identified at such location in the wake of a cylinder oscillating in cross-flow. The flow-induced response of the system, which has one degree of freedom, has been analysed for several values of the diameter ratio d ∕ D ≤ 1 , where d is the diameter of the downstream cylinder. As the value of d ∕ D increases, the VIV response is attenuated, it being associated with important reductions in the transverse and in-line force coefficients. In addition, Digital Particle Image Velocimetry (DPIV) has allowed us to study the changes in the near wake and forcing introduced by the presence of different downstream cylinders. Thus, the flow dynamics is clearly driven by the relative size of the cylinders, and therefore, the size of the gap region. In particular, for small values of d ∕ D , a moderate disruption in the vortex formation and shear layer interaction of the wake of the upstream cylinder takes place. For intermediate values of d ∕ D , the downstream cylinder generates a strong local wake that results in the shedding of two co-rotating vortices at each side of the system, while markedly undermining the shedding from the upstream cylinder. In the limit of d ∕ D = 1 , a stagnant region develops in the gap between the cylinders, and the tandem behaves as a single bluff body, featuring a very attenuated flow-induced response. |
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Effect of diameter ratio on the flow-induced vibrations of two rigidly coupled circular cylinders in tandem |
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