A robust sharp interface method for SPH
Based on our previous sharp interface method (SIM) for smoothed particle hydrodynamics (SPH) [Zhang M and Deng X-L. A sharp interface method for SPH. Journal of Computational Physics 2015; 302 469–484], a robust SIM for SPH is developed. According to Lagrangian nature of SPH, the interface is locate...
Ausführliche Beschreibung
Autor*in: |
Zhang, Mingyu [verfasserIn] Deng, Xiao-Long [verfasserIn] Shen, Zhijun [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2019 |
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Schlagwörter: |
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Übergeordnetes Werk: |
Enthalten in: Engineering analysis with boundary elements - Amsterdam [u.a.] : Elsevier Science, 1989, 106, Seite 275-285 |
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Übergeordnetes Werk: |
volume:106 ; pages:275-285 |
DOI / URN: |
10.1016/j.enganabound.2019.05.022 |
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Katalog-ID: |
ELV002801507 |
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245 | 1 | 0 | |a A robust sharp interface method for SPH |
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520 | |a Based on our previous sharp interface method (SIM) for smoothed particle hydrodynamics (SPH) [Zhang M and Deng X-L. A sharp interface method for SPH. Journal of Computational Physics 2015; 302 469–484], a robust SIM for SPH is developed. According to Lagrangian nature of SPH, the interface is located between two types of SPH particles. It is different from the previous method, in which the initial interface is defined by the user. The main consequence of the interface definition in the current method is that minimum value of level set function is around half the initial inter-particle distance. Therefore the calculation of level set function becomes more robust. The interface status is determined by jump conditions at the interface. Then the interface status is extended to the ghost fluid particles. Various benchmark tests are given to show the performance of the robust SIM for SPH. Comparing with the previous SIM for SPH, current method is more robust and accurate in the simulation of low-speed multiphase flows of high density ratios with clear interface. | ||
650 | 4 | |a Sharp interface method | |
650 | 4 | |a SPH | |
650 | 4 | |a Lagrangian method | |
650 | 4 | |a Level set method | |
650 | 4 | |a Ghost fluid method | |
700 | 1 | |a Deng, Xiao-Long |e verfasserin |4 aut | |
700 | 1 | |a Shen, Zhijun |e verfasserin |4 aut | |
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10.1016/j.enganabound.2019.05.022 doi (DE-627)ELV002801507 (ELSEVIER)S0955-7997(19)30205-X DE-627 ger DE-627 rda eng 690 620 DE-600 50.03 bkl Zhang, Mingyu verfasserin aut A robust sharp interface method for SPH 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Based on our previous sharp interface method (SIM) for smoothed particle hydrodynamics (SPH) [Zhang M and Deng X-L. A sharp interface method for SPH. Journal of Computational Physics 2015; 302 469–484], a robust SIM for SPH is developed. According to Lagrangian nature of SPH, the interface is located between two types of SPH particles. It is different from the previous method, in which the initial interface is defined by the user. The main consequence of the interface definition in the current method is that minimum value of level set function is around half the initial inter-particle distance. Therefore the calculation of level set function becomes more robust. The interface status is determined by jump conditions at the interface. Then the interface status is extended to the ghost fluid particles. Various benchmark tests are given to show the performance of the robust SIM for SPH. Comparing with the previous SIM for SPH, current method is more robust and accurate in the simulation of low-speed multiphase flows of high density ratios with clear interface. Sharp interface method SPH Lagrangian method Level set method Ghost fluid method Deng, Xiao-Long verfasserin aut Shen, Zhijun verfasserin aut Enthalten in Engineering analysis with boundary elements Amsterdam [u.a.] : Elsevier Science, 1989 106, Seite 275-285 Online-Ressource (DE-627)320515486 (DE-600)2013898-2 (DE-576)259271462 0955-7997 nnns volume:106 pages:275-285 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 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_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.03 Methoden und Techniken der Ingenieurwissenschaften AR 106 275-285 |
spelling |
10.1016/j.enganabound.2019.05.022 doi (DE-627)ELV002801507 (ELSEVIER)S0955-7997(19)30205-X DE-627 ger DE-627 rda eng 690 620 DE-600 50.03 bkl Zhang, Mingyu verfasserin aut A robust sharp interface method for SPH 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Based on our previous sharp interface method (SIM) for smoothed particle hydrodynamics (SPH) [Zhang M and Deng X-L. A sharp interface method for SPH. Journal of Computational Physics 2015; 302 469–484], a robust SIM for SPH is developed. According to Lagrangian nature of SPH, the interface is located between two types of SPH particles. It is different from the previous method, in which the initial interface is defined by the user. The main consequence of the interface definition in the current method is that minimum value of level set function is around half the initial inter-particle distance. Therefore the calculation of level set function becomes more robust. The interface status is determined by jump conditions at the interface. Then the interface status is extended to the ghost fluid particles. Various benchmark tests are given to show the performance of the robust SIM for SPH. Comparing with the previous SIM for SPH, current method is more robust and accurate in the simulation of low-speed multiphase flows of high density ratios with clear interface. Sharp interface method SPH Lagrangian method Level set method Ghost fluid method Deng, Xiao-Long verfasserin aut Shen, Zhijun verfasserin aut Enthalten in Engineering analysis with boundary elements Amsterdam [u.a.] : Elsevier Science, 1989 106, Seite 275-285 Online-Ressource (DE-627)320515486 (DE-600)2013898-2 (DE-576)259271462 0955-7997 nnns volume:106 pages:275-285 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 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_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.03 Methoden und Techniken der Ingenieurwissenschaften AR 106 275-285 |
allfields_unstemmed |
10.1016/j.enganabound.2019.05.022 doi (DE-627)ELV002801507 (ELSEVIER)S0955-7997(19)30205-X DE-627 ger DE-627 rda eng 690 620 DE-600 50.03 bkl Zhang, Mingyu verfasserin aut A robust sharp interface method for SPH 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Based on our previous sharp interface method (SIM) for smoothed particle hydrodynamics (SPH) [Zhang M and Deng X-L. A sharp interface method for SPH. Journal of Computational Physics 2015; 302 469–484], a robust SIM for SPH is developed. According to Lagrangian nature of SPH, the interface is located between two types of SPH particles. It is different from the previous method, in which the initial interface is defined by the user. The main consequence of the interface definition in the current method is that minimum value of level set function is around half the initial inter-particle distance. Therefore the calculation of level set function becomes more robust. The interface status is determined by jump conditions at the interface. Then the interface status is extended to the ghost fluid particles. Various benchmark tests are given to show the performance of the robust SIM for SPH. Comparing with the previous SIM for SPH, current method is more robust and accurate in the simulation of low-speed multiphase flows of high density ratios with clear interface. Sharp interface method SPH Lagrangian method Level set method Ghost fluid method Deng, Xiao-Long verfasserin aut Shen, Zhijun verfasserin aut Enthalten in Engineering analysis with boundary elements Amsterdam [u.a.] : Elsevier Science, 1989 106, Seite 275-285 Online-Ressource (DE-627)320515486 (DE-600)2013898-2 (DE-576)259271462 0955-7997 nnns volume:106 pages:275-285 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 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_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.03 Methoden und Techniken der Ingenieurwissenschaften AR 106 275-285 |
allfieldsGer |
10.1016/j.enganabound.2019.05.022 doi (DE-627)ELV002801507 (ELSEVIER)S0955-7997(19)30205-X DE-627 ger DE-627 rda eng 690 620 DE-600 50.03 bkl Zhang, Mingyu verfasserin aut A robust sharp interface method for SPH 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Based on our previous sharp interface method (SIM) for smoothed particle hydrodynamics (SPH) [Zhang M and Deng X-L. A sharp interface method for SPH. Journal of Computational Physics 2015; 302 469–484], a robust SIM for SPH is developed. According to Lagrangian nature of SPH, the interface is located between two types of SPH particles. It is different from the previous method, in which the initial interface is defined by the user. The main consequence of the interface definition in the current method is that minimum value of level set function is around half the initial inter-particle distance. Therefore the calculation of level set function becomes more robust. The interface status is determined by jump conditions at the interface. Then the interface status is extended to the ghost fluid particles. Various benchmark tests are given to show the performance of the robust SIM for SPH. Comparing with the previous SIM for SPH, current method is more robust and accurate in the simulation of low-speed multiphase flows of high density ratios with clear interface. Sharp interface method SPH Lagrangian method Level set method Ghost fluid method Deng, Xiao-Long verfasserin aut Shen, Zhijun verfasserin aut Enthalten in Engineering analysis with boundary elements Amsterdam [u.a.] : Elsevier Science, 1989 106, Seite 275-285 Online-Ressource (DE-627)320515486 (DE-600)2013898-2 (DE-576)259271462 0955-7997 nnns volume:106 pages:275-285 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 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_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.03 Methoden und Techniken der Ingenieurwissenschaften AR 106 275-285 |
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10.1016/j.enganabound.2019.05.022 doi (DE-627)ELV002801507 (ELSEVIER)S0955-7997(19)30205-X DE-627 ger DE-627 rda eng 690 620 DE-600 50.03 bkl Zhang, Mingyu verfasserin aut A robust sharp interface method for SPH 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Based on our previous sharp interface method (SIM) for smoothed particle hydrodynamics (SPH) [Zhang M and Deng X-L. A sharp interface method for SPH. Journal of Computational Physics 2015; 302 469–484], a robust SIM for SPH is developed. According to Lagrangian nature of SPH, the interface is located between two types of SPH particles. It is different from the previous method, in which the initial interface is defined by the user. The main consequence of the interface definition in the current method is that minimum value of level set function is around half the initial inter-particle distance. Therefore the calculation of level set function becomes more robust. The interface status is determined by jump conditions at the interface. Then the interface status is extended to the ghost fluid particles. Various benchmark tests are given to show the performance of the robust SIM for SPH. Comparing with the previous SIM for SPH, current method is more robust and accurate in the simulation of low-speed multiphase flows of high density ratios with clear interface. Sharp interface method SPH Lagrangian method Level set method Ghost fluid method Deng, Xiao-Long verfasserin aut Shen, Zhijun verfasserin aut Enthalten in Engineering analysis with boundary elements Amsterdam [u.a.] : Elsevier Science, 1989 106, Seite 275-285 Online-Ressource (DE-627)320515486 (DE-600)2013898-2 (DE-576)259271462 0955-7997 nnns volume:106 pages:275-285 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 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_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.03 Methoden und Techniken der Ingenieurwissenschaften AR 106 275-285 |
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A robust sharp interface method for SPH |
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title_full |
A robust sharp interface method for SPH |
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Zhang, Mingyu |
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Zhang, Mingyu Deng, Xiao-Long Shen, Zhijun |
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Zhang, Mingyu |
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a robust sharp interface method for sph |
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A robust sharp interface method for SPH |
abstract |
Based on our previous sharp interface method (SIM) for smoothed particle hydrodynamics (SPH) [Zhang M and Deng X-L. A sharp interface method for SPH. Journal of Computational Physics 2015; 302 469–484], a robust SIM for SPH is developed. According to Lagrangian nature of SPH, the interface is located between two types of SPH particles. It is different from the previous method, in which the initial interface is defined by the user. The main consequence of the interface definition in the current method is that minimum value of level set function is around half the initial inter-particle distance. Therefore the calculation of level set function becomes more robust. The interface status is determined by jump conditions at the interface. Then the interface status is extended to the ghost fluid particles. Various benchmark tests are given to show the performance of the robust SIM for SPH. Comparing with the previous SIM for SPH, current method is more robust and accurate in the simulation of low-speed multiphase flows of high density ratios with clear interface. |
abstractGer |
Based on our previous sharp interface method (SIM) for smoothed particle hydrodynamics (SPH) [Zhang M and Deng X-L. A sharp interface method for SPH. Journal of Computational Physics 2015; 302 469–484], a robust SIM for SPH is developed. According to Lagrangian nature of SPH, the interface is located between two types of SPH particles. It is different from the previous method, in which the initial interface is defined by the user. The main consequence of the interface definition in the current method is that minimum value of level set function is around half the initial inter-particle distance. Therefore the calculation of level set function becomes more robust. The interface status is determined by jump conditions at the interface. Then the interface status is extended to the ghost fluid particles. Various benchmark tests are given to show the performance of the robust SIM for SPH. Comparing with the previous SIM for SPH, current method is more robust and accurate in the simulation of low-speed multiphase flows of high density ratios with clear interface. |
abstract_unstemmed |
Based on our previous sharp interface method (SIM) for smoothed particle hydrodynamics (SPH) [Zhang M and Deng X-L. A sharp interface method for SPH. Journal of Computational Physics 2015; 302 469–484], a robust SIM for SPH is developed. According to Lagrangian nature of SPH, the interface is located between two types of SPH particles. It is different from the previous method, in which the initial interface is defined by the user. The main consequence of the interface definition in the current method is that minimum value of level set function is around half the initial inter-particle distance. Therefore the calculation of level set function becomes more robust. The interface status is determined by jump conditions at the interface. Then the interface status is extended to the ghost fluid particles. Various benchmark tests are given to show the performance of the robust SIM for SPH. Comparing with the previous SIM for SPH, current method is more robust and accurate in the simulation of low-speed multiphase flows of high density ratios with clear interface. |
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title_short |
A robust sharp interface method for SPH |
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up_date |
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