Investigation of thermohydrodynamic behaviour of gas foil journal bearing accounting slip-flow phenomenon
Abstract The use of gas foil bearings in turbomachines such as turbochargers and turboexpanders in recent times comes into picture due to merits of gas foil bearings over simple gas lubricated bearings. The high speed leads to various constraints in selection process of the bearings. However, gas fo...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Kumar, Jitesh [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2021 |
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| Schlagwörter: |
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| Anmerkung: |
© The Author(s), under exclusive licence to The Brazilian Society of Mechanical Sciences and Engineering 2021 |
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| Übergeordnetes Werk: |
Enthalten in: Journal of the Brazilian Society of Mechanical Sciences and Engineering - Berlin : Springer, 2003, 44(2021), 1 vom: 23. Dez. |
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| Übergeordnetes Werk: |
volume:44 ; year:2021 ; number:1 ; day:23 ; month:12 |
| Links: |
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| DOI / URN: |
10.1007/s40430-021-03330-9 |
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| Katalog-ID: |
SPR045838321 |
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| 520 | |a Abstract The use of gas foil bearings in turbomachines such as turbochargers and turboexpanders in recent times comes into picture due to merits of gas foil bearings over simple gas lubricated bearings. The high speed leads to various constraints in selection process of the bearings. However, gas foil bearing’s (GFBs) ability to improve the dynamic characteristics (such as stiffness and damping) makes them hot topic to investigate. Usually, gas foil bearings deal with operating conditions such as high speed and low clearance region which further leads to slip-flow condition at solid–fluid interface. The current article investigates the hydrodynamics, thermal characteristics and thermohydrodynamics of the gas foil journal bearing (GFJB) under the impact of slip-flow condition. The mathematical model is formulated by considering first-order velocity slip and thus modifying the Reynold’s equation coupled with the energy equation. The viscosity and density are evaluated as a function of temperature which again substituted in Reynold’s equation to investigate the thermohydrodynamic characteristics of GFJB. The equations are further discretised using finite difference method and solved using successive over relaxation (SOR) methodology. The comparison is drawn between the performance parameters for both no-slip and slip-flow conditions. | ||
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| 700 | 1 | |a Sahoo, Ranjit K. |4 aut | |
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10.1007/s40430-021-03330-9 doi (DE-627)SPR045838321 (SPR)s40430-021-03330-9-e DE-627 ger DE-627 rakwb eng Kumar, Jitesh verfasserin (orcid)0000-0002-4952-4599 aut Investigation of thermohydrodynamic behaviour of gas foil journal bearing accounting slip-flow phenomenon 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to The Brazilian Society of Mechanical Sciences and Engineering 2021 Abstract The use of gas foil bearings in turbomachines such as turbochargers and turboexpanders in recent times comes into picture due to merits of gas foil bearings over simple gas lubricated bearings. The high speed leads to various constraints in selection process of the bearings. However, gas foil bearing’s (GFBs) ability to improve the dynamic characteristics (such as stiffness and damping) makes them hot topic to investigate. Usually, gas foil bearings deal with operating conditions such as high speed and low clearance region which further leads to slip-flow condition at solid–fluid interface. The current article investigates the hydrodynamics, thermal characteristics and thermohydrodynamics of the gas foil journal bearing (GFJB) under the impact of slip-flow condition. The mathematical model is formulated by considering first-order velocity slip and thus modifying the Reynold’s equation coupled with the energy equation. The viscosity and density are evaluated as a function of temperature which again substituted in Reynold’s equation to investigate the thermohydrodynamic characteristics of GFJB. The equations are further discretised using finite difference method and solved using successive over relaxation (SOR) methodology. The comparison is drawn between the performance parameters for both no-slip and slip-flow conditions. Gas foil bearings (dpeaa)DE-He213 Thermohydrodynamic (dpeaa)DE-He213 Slip flow (dpeaa)DE-He213 Reynold’s equation (dpeaa)DE-He213 Energy equation (dpeaa)DE-He213 Khamari, Debanshu S. aut Behera, Suraj K. aut Sahoo, Ranjit K. aut Enthalten in Journal of the Brazilian Society of Mechanical Sciences and Engineering Berlin : Springer, 2003 44(2021), 1 vom: 23. Dez. (DE-627)387477950 (DE-600)2145288-X 1806-3691 nnns volume:44 year:2021 number:1 day:23 month:12 https://dx.doi.org/10.1007/s40430-021-03330-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 44 2021 1 23 12 |
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10.1007/s40430-021-03330-9 doi (DE-627)SPR045838321 (SPR)s40430-021-03330-9-e DE-627 ger DE-627 rakwb eng Kumar, Jitesh verfasserin (orcid)0000-0002-4952-4599 aut Investigation of thermohydrodynamic behaviour of gas foil journal bearing accounting slip-flow phenomenon 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to The Brazilian Society of Mechanical Sciences and Engineering 2021 Abstract The use of gas foil bearings in turbomachines such as turbochargers and turboexpanders in recent times comes into picture due to merits of gas foil bearings over simple gas lubricated bearings. The high speed leads to various constraints in selection process of the bearings. However, gas foil bearing’s (GFBs) ability to improve the dynamic characteristics (such as stiffness and damping) makes them hot topic to investigate. Usually, gas foil bearings deal with operating conditions such as high speed and low clearance region which further leads to slip-flow condition at solid–fluid interface. The current article investigates the hydrodynamics, thermal characteristics and thermohydrodynamics of the gas foil journal bearing (GFJB) under the impact of slip-flow condition. The mathematical model is formulated by considering first-order velocity slip and thus modifying the Reynold’s equation coupled with the energy equation. The viscosity and density are evaluated as a function of temperature which again substituted in Reynold’s equation to investigate the thermohydrodynamic characteristics of GFJB. The equations are further discretised using finite difference method and solved using successive over relaxation (SOR) methodology. The comparison is drawn between the performance parameters for both no-slip and slip-flow conditions. Gas foil bearings (dpeaa)DE-He213 Thermohydrodynamic (dpeaa)DE-He213 Slip flow (dpeaa)DE-He213 Reynold’s equation (dpeaa)DE-He213 Energy equation (dpeaa)DE-He213 Khamari, Debanshu S. aut Behera, Suraj K. aut Sahoo, Ranjit K. aut Enthalten in Journal of the Brazilian Society of Mechanical Sciences and Engineering Berlin : Springer, 2003 44(2021), 1 vom: 23. Dez. (DE-627)387477950 (DE-600)2145288-X 1806-3691 nnns volume:44 year:2021 number:1 day:23 month:12 https://dx.doi.org/10.1007/s40430-021-03330-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 44 2021 1 23 12 |
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10.1007/s40430-021-03330-9 doi (DE-627)SPR045838321 (SPR)s40430-021-03330-9-e DE-627 ger DE-627 rakwb eng Kumar, Jitesh verfasserin (orcid)0000-0002-4952-4599 aut Investigation of thermohydrodynamic behaviour of gas foil journal bearing accounting slip-flow phenomenon 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to The Brazilian Society of Mechanical Sciences and Engineering 2021 Abstract The use of gas foil bearings in turbomachines such as turbochargers and turboexpanders in recent times comes into picture due to merits of gas foil bearings over simple gas lubricated bearings. The high speed leads to various constraints in selection process of the bearings. However, gas foil bearing’s (GFBs) ability to improve the dynamic characteristics (such as stiffness and damping) makes them hot topic to investigate. Usually, gas foil bearings deal with operating conditions such as high speed and low clearance region which further leads to slip-flow condition at solid–fluid interface. The current article investigates the hydrodynamics, thermal characteristics and thermohydrodynamics of the gas foil journal bearing (GFJB) under the impact of slip-flow condition. The mathematical model is formulated by considering first-order velocity slip and thus modifying the Reynold’s equation coupled with the energy equation. The viscosity and density are evaluated as a function of temperature which again substituted in Reynold’s equation to investigate the thermohydrodynamic characteristics of GFJB. The equations are further discretised using finite difference method and solved using successive over relaxation (SOR) methodology. The comparison is drawn between the performance parameters for both no-slip and slip-flow conditions. Gas foil bearings (dpeaa)DE-He213 Thermohydrodynamic (dpeaa)DE-He213 Slip flow (dpeaa)DE-He213 Reynold’s equation (dpeaa)DE-He213 Energy equation (dpeaa)DE-He213 Khamari, Debanshu S. aut Behera, Suraj K. aut Sahoo, Ranjit K. aut Enthalten in Journal of the Brazilian Society of Mechanical Sciences and Engineering Berlin : Springer, 2003 44(2021), 1 vom: 23. Dez. (DE-627)387477950 (DE-600)2145288-X 1806-3691 nnns volume:44 year:2021 number:1 day:23 month:12 https://dx.doi.org/10.1007/s40430-021-03330-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 44 2021 1 23 12 |
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10.1007/s40430-021-03330-9 doi (DE-627)SPR045838321 (SPR)s40430-021-03330-9-e DE-627 ger DE-627 rakwb eng Kumar, Jitesh verfasserin (orcid)0000-0002-4952-4599 aut Investigation of thermohydrodynamic behaviour of gas foil journal bearing accounting slip-flow phenomenon 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to The Brazilian Society of Mechanical Sciences and Engineering 2021 Abstract The use of gas foil bearings in turbomachines such as turbochargers and turboexpanders in recent times comes into picture due to merits of gas foil bearings over simple gas lubricated bearings. The high speed leads to various constraints in selection process of the bearings. However, gas foil bearing’s (GFBs) ability to improve the dynamic characteristics (such as stiffness and damping) makes them hot topic to investigate. Usually, gas foil bearings deal with operating conditions such as high speed and low clearance region which further leads to slip-flow condition at solid–fluid interface. The current article investigates the hydrodynamics, thermal characteristics and thermohydrodynamics of the gas foil journal bearing (GFJB) under the impact of slip-flow condition. The mathematical model is formulated by considering first-order velocity slip and thus modifying the Reynold’s equation coupled with the energy equation. The viscosity and density are evaluated as a function of temperature which again substituted in Reynold’s equation to investigate the thermohydrodynamic characteristics of GFJB. The equations are further discretised using finite difference method and solved using successive over relaxation (SOR) methodology. The comparison is drawn between the performance parameters for both no-slip and slip-flow conditions. Gas foil bearings (dpeaa)DE-He213 Thermohydrodynamic (dpeaa)DE-He213 Slip flow (dpeaa)DE-He213 Reynold’s equation (dpeaa)DE-He213 Energy equation (dpeaa)DE-He213 Khamari, Debanshu S. aut Behera, Suraj K. aut Sahoo, Ranjit K. aut Enthalten in Journal of the Brazilian Society of Mechanical Sciences and Engineering Berlin : Springer, 2003 44(2021), 1 vom: 23. Dez. (DE-627)387477950 (DE-600)2145288-X 1806-3691 nnns volume:44 year:2021 number:1 day:23 month:12 https://dx.doi.org/10.1007/s40430-021-03330-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 44 2021 1 23 12 |
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10.1007/s40430-021-03330-9 doi (DE-627)SPR045838321 (SPR)s40430-021-03330-9-e DE-627 ger DE-627 rakwb eng Kumar, Jitesh verfasserin (orcid)0000-0002-4952-4599 aut Investigation of thermohydrodynamic behaviour of gas foil journal bearing accounting slip-flow phenomenon 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to The Brazilian Society of Mechanical Sciences and Engineering 2021 Abstract The use of gas foil bearings in turbomachines such as turbochargers and turboexpanders in recent times comes into picture due to merits of gas foil bearings over simple gas lubricated bearings. The high speed leads to various constraints in selection process of the bearings. However, gas foil bearing’s (GFBs) ability to improve the dynamic characteristics (such as stiffness and damping) makes them hot topic to investigate. Usually, gas foil bearings deal with operating conditions such as high speed and low clearance region which further leads to slip-flow condition at solid–fluid interface. The current article investigates the hydrodynamics, thermal characteristics and thermohydrodynamics of the gas foil journal bearing (GFJB) under the impact of slip-flow condition. The mathematical model is formulated by considering first-order velocity slip and thus modifying the Reynold’s equation coupled with the energy equation. The viscosity and density are evaluated as a function of temperature which again substituted in Reynold’s equation to investigate the thermohydrodynamic characteristics of GFJB. The equations are further discretised using finite difference method and solved using successive over relaxation (SOR) methodology. The comparison is drawn between the performance parameters for both no-slip and slip-flow conditions. Gas foil bearings (dpeaa)DE-He213 Thermohydrodynamic (dpeaa)DE-He213 Slip flow (dpeaa)DE-He213 Reynold’s equation (dpeaa)DE-He213 Energy equation (dpeaa)DE-He213 Khamari, Debanshu S. aut Behera, Suraj K. aut Sahoo, Ranjit K. aut Enthalten in Journal of the Brazilian Society of Mechanical Sciences and Engineering Berlin : Springer, 2003 44(2021), 1 vom: 23. Dez. (DE-627)387477950 (DE-600)2145288-X 1806-3691 nnns volume:44 year:2021 number:1 day:23 month:12 https://dx.doi.org/10.1007/s40430-021-03330-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 44 2021 1 23 12 |
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Kumar, Jitesh @@aut@@ Khamari, Debanshu S. @@aut@@ Behera, Suraj K. @@aut@@ Sahoo, Ranjit K. @@aut@@ |
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The high speed leads to various constraints in selection process of the bearings. However, gas foil bearing’s (GFBs) ability to improve the dynamic characteristics (such as stiffness and damping) makes them hot topic to investigate. Usually, gas foil bearings deal with operating conditions such as high speed and low clearance region which further leads to slip-flow condition at solid–fluid interface. The current article investigates the hydrodynamics, thermal characteristics and thermohydrodynamics of the gas foil journal bearing (GFJB) under the impact of slip-flow condition. The mathematical model is formulated by considering first-order velocity slip and thus modifying the Reynold’s equation coupled with the energy equation. The viscosity and density are evaluated as a function of temperature which again substituted in Reynold’s equation to investigate the thermohydrodynamic characteristics of GFJB. The equations are further discretised using finite difference method and solved using successive over relaxation (SOR) methodology. 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| author |
Kumar, Jitesh |
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Kumar, Jitesh misc Gas foil bearings misc Thermohydrodynamic misc Slip flow misc Reynold’s equation misc Energy equation Investigation of thermohydrodynamic behaviour of gas foil journal bearing accounting slip-flow phenomenon |
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Investigation of thermohydrodynamic behaviour of gas foil journal bearing accounting slip-flow phenomenon Gas foil bearings (dpeaa)DE-He213 Thermohydrodynamic (dpeaa)DE-He213 Slip flow (dpeaa)DE-He213 Reynold’s equation (dpeaa)DE-He213 Energy equation (dpeaa)DE-He213 |
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Investigation of thermohydrodynamic behaviour of gas foil journal bearing accounting slip-flow phenomenon |
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Investigation of thermohydrodynamic behaviour of gas foil journal bearing accounting slip-flow phenomenon |
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Journal of the Brazilian Society of Mechanical Sciences and Engineering |
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Journal of the Brazilian Society of Mechanical Sciences and Engineering |
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Kumar, Jitesh |
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10.1007/s40430-021-03330-9 |
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| title_sort |
investigation of thermohydrodynamic behaviour of gas foil journal bearing accounting slip-flow phenomenon |
| title_auth |
Investigation of thermohydrodynamic behaviour of gas foil journal bearing accounting slip-flow phenomenon |
| abstract |
Abstract The use of gas foil bearings in turbomachines such as turbochargers and turboexpanders in recent times comes into picture due to merits of gas foil bearings over simple gas lubricated bearings. The high speed leads to various constraints in selection process of the bearings. However, gas foil bearing’s (GFBs) ability to improve the dynamic characteristics (such as stiffness and damping) makes them hot topic to investigate. Usually, gas foil bearings deal with operating conditions such as high speed and low clearance region which further leads to slip-flow condition at solid–fluid interface. The current article investigates the hydrodynamics, thermal characteristics and thermohydrodynamics of the gas foil journal bearing (GFJB) under the impact of slip-flow condition. The mathematical model is formulated by considering first-order velocity slip and thus modifying the Reynold’s equation coupled with the energy equation. The viscosity and density are evaluated as a function of temperature which again substituted in Reynold’s equation to investigate the thermohydrodynamic characteristics of GFJB. The equations are further discretised using finite difference method and solved using successive over relaxation (SOR) methodology. The comparison is drawn between the performance parameters for both no-slip and slip-flow conditions. © The Author(s), under exclusive licence to The Brazilian Society of Mechanical Sciences and Engineering 2021 |
| abstractGer |
Abstract The use of gas foil bearings in turbomachines such as turbochargers and turboexpanders in recent times comes into picture due to merits of gas foil bearings over simple gas lubricated bearings. The high speed leads to various constraints in selection process of the bearings. However, gas foil bearing’s (GFBs) ability to improve the dynamic characteristics (such as stiffness and damping) makes them hot topic to investigate. Usually, gas foil bearings deal with operating conditions such as high speed and low clearance region which further leads to slip-flow condition at solid–fluid interface. The current article investigates the hydrodynamics, thermal characteristics and thermohydrodynamics of the gas foil journal bearing (GFJB) under the impact of slip-flow condition. The mathematical model is formulated by considering first-order velocity slip and thus modifying the Reynold’s equation coupled with the energy equation. The viscosity and density are evaluated as a function of temperature which again substituted in Reynold’s equation to investigate the thermohydrodynamic characteristics of GFJB. The equations are further discretised using finite difference method and solved using successive over relaxation (SOR) methodology. The comparison is drawn between the performance parameters for both no-slip and slip-flow conditions. © The Author(s), under exclusive licence to The Brazilian Society of Mechanical Sciences and Engineering 2021 |
| abstract_unstemmed |
Abstract The use of gas foil bearings in turbomachines such as turbochargers and turboexpanders in recent times comes into picture due to merits of gas foil bearings over simple gas lubricated bearings. The high speed leads to various constraints in selection process of the bearings. However, gas foil bearing’s (GFBs) ability to improve the dynamic characteristics (such as stiffness and damping) makes them hot topic to investigate. Usually, gas foil bearings deal with operating conditions such as high speed and low clearance region which further leads to slip-flow condition at solid–fluid interface. The current article investigates the hydrodynamics, thermal characteristics and thermohydrodynamics of the gas foil journal bearing (GFJB) under the impact of slip-flow condition. The mathematical model is formulated by considering first-order velocity slip and thus modifying the Reynold’s equation coupled with the energy equation. The viscosity and density are evaluated as a function of temperature which again substituted in Reynold’s equation to investigate the thermohydrodynamic characteristics of GFJB. The equations are further discretised using finite difference method and solved using successive over relaxation (SOR) methodology. The comparison is drawn between the performance parameters for both no-slip and slip-flow conditions. © The Author(s), under exclusive licence to The Brazilian Society of Mechanical Sciences and Engineering 2021 |
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Investigation of thermohydrodynamic behaviour of gas foil journal bearing accounting slip-flow phenomenon |
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https://dx.doi.org/10.1007/s40430-021-03330-9 |
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Khamari, Debanshu S. Behera, Suraj K. Sahoo, Ranjit K. |
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Khamari, Debanshu S. Behera, Suraj K. Sahoo, Ranjit K. |
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10.1007/s40430-021-03330-9 |
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2024-07-03T18:37:04.217Z |
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| score |
7.3980455 |