Effect of the channel geometries on flow regimes of a viscoelastic surfactant solution in a cavity

Viscoelastic surfactant solutions exhibit a characteristic flow behavior in the cavity of a flow channel. These flows are categorized as the flow regimes of the Barus effect, bulge structure, and separation flow. The former two flow regimes sweep into the cavity, which helps increase the heat transf...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Sato, Hideki [verfasserIn] Kawata, Masaki [verfasserIn] Hidema, Ruri [verfasserIn] Suzuki, Hiroshi [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2022

Schlagwörter:	Cavity flow Deborah number Inertia elastic instability Viscoelastic fluid Viscoelastic Mach number

Übergeordnetes Werk:	Enthalten in: Journal of non-Newtonian fluid mechanics - Amsterdam : Elsevier, 1976, 310
Übergeordnetes Werk:	volume:310

DOI / URN:	10.1016/j.jnnfm.2022.104946

Katalog-ID:	ELV00884710X

Internformat


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520			\|a Viscoelastic surfactant solutions exhibit a characteristic flow behavior in the cavity of a flow channel. These flows are categorized as the flow regimes of the Barus effect, bulge structure, and separation flow. The former two flow regimes sweep into the cavity, which helps increase the heat transfer efficiency of a heat exchanger with a cavity to increase the heat transfer surface. Therefore, this study visualized and quantified these characteristic flow behaviors in channels with different geometries, based on inertia and elasticity, using Reynolds number, Re, and Weissenberg number, Wi. The flow regimes were affected by both inertia and elasticity; thus, viscoelastic Mach number, Ma, was also useful for characterizing the flow transition. The reattachment and separation lengths of the streamlines that sweep the bottom wall of the cavity were quantified using Re and Ma. These characteristic flow lengths were characterized and modeled by dimensionless numbers in the flow regime of the Barus effect but were not uniformly characterized in the flow regime of the bulge structure. The bulge structure was an entirely unique flow regime, but it significantly reduced the recirculating regions in the cavity, which is promising for increasing heat transfer efficiency.
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publishDate	2022
allfields	10.1016/j.jnnfm.2022.104946 doi (DE-627)ELV00884710X (ELSEVIER)S0377-0257(22)00165-3 DE-627 ger DE-627 rda eng 530 DE-600 50.33 bkl Sato, Hideki verfasserin aut Effect of the channel geometries on flow regimes of a viscoelastic surfactant solution in a cavity 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Viscoelastic surfactant solutions exhibit a characteristic flow behavior in the cavity of a flow channel. These flows are categorized as the flow regimes of the Barus effect, bulge structure, and separation flow. The former two flow regimes sweep into the cavity, which helps increase the heat transfer efficiency of a heat exchanger with a cavity to increase the heat transfer surface. Therefore, this study visualized and quantified these characteristic flow behaviors in channels with different geometries, based on inertia and elasticity, using Reynolds number, Re, and Weissenberg number, Wi. The flow regimes were affected by both inertia and elasticity; thus, viscoelastic Mach number, Ma, was also useful for characterizing the flow transition. The reattachment and separation lengths of the streamlines that sweep the bottom wall of the cavity were quantified using Re and Ma. These characteristic flow lengths were characterized and modeled by dimensionless numbers in the flow regime of the Barus effect but were not uniformly characterized in the flow regime of the bulge structure. The bulge structure was an entirely unique flow regime, but it significantly reduced the recirculating regions in the cavity, which is promising for increasing heat transfer efficiency. Cavity flow Deborah number Inertia elastic instability Viscoelastic fluid Viscoelastic Mach number Kawata, Masaki verfasserin aut Hidema, Ruri verfasserin (orcid)0000-0002-0810-8820 aut Suzuki, Hiroshi verfasserin (orcid)0000-0003-1570-0029 aut Enthalten in Journal of non-Newtonian fluid mechanics Amsterdam : Elsevier, 1976 310 Online-Ressource (DE-627)320050823 (DE-600)2017337-4 (DE-576)11739890X 0377-0257 nnns volume:310 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_101 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_2003 GBV_ILN_2004 GBV_ILN_2005 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_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 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_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_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.33 Technische Strömungsmechanik AR 310
spelling	10.1016/j.jnnfm.2022.104946 doi (DE-627)ELV00884710X (ELSEVIER)S0377-0257(22)00165-3 DE-627 ger DE-627 rda eng 530 DE-600 50.33 bkl Sato, Hideki verfasserin aut Effect of the channel geometries on flow regimes of a viscoelastic surfactant solution in a cavity 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Viscoelastic surfactant solutions exhibit a characteristic flow behavior in the cavity of a flow channel. These flows are categorized as the flow regimes of the Barus effect, bulge structure, and separation flow. The former two flow regimes sweep into the cavity, which helps increase the heat transfer efficiency of a heat exchanger with a cavity to increase the heat transfer surface. Therefore, this study visualized and quantified these characteristic flow behaviors in channels with different geometries, based on inertia and elasticity, using Reynolds number, Re, and Weissenberg number, Wi. The flow regimes were affected by both inertia and elasticity; thus, viscoelastic Mach number, Ma, was also useful for characterizing the flow transition. The reattachment and separation lengths of the streamlines that sweep the bottom wall of the cavity were quantified using Re and Ma. These characteristic flow lengths were characterized and modeled by dimensionless numbers in the flow regime of the Barus effect but were not uniformly characterized in the flow regime of the bulge structure. The bulge structure was an entirely unique flow regime, but it significantly reduced the recirculating regions in the cavity, which is promising for increasing heat transfer efficiency. Cavity flow Deborah number Inertia elastic instability Viscoelastic fluid Viscoelastic Mach number Kawata, Masaki verfasserin aut Hidema, Ruri verfasserin (orcid)0000-0002-0810-8820 aut Suzuki, Hiroshi verfasserin (orcid)0000-0003-1570-0029 aut Enthalten in Journal of non-Newtonian fluid mechanics Amsterdam : Elsevier, 1976 310 Online-Ressource (DE-627)320050823 (DE-600)2017337-4 (DE-576)11739890X 0377-0257 nnns volume:310 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_101 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_2003 GBV_ILN_2004 GBV_ILN_2005 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_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 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_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_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.33 Technische Strömungsmechanik AR 310
allfields_unstemmed	10.1016/j.jnnfm.2022.104946 doi (DE-627)ELV00884710X (ELSEVIER)S0377-0257(22)00165-3 DE-627 ger DE-627 rda eng 530 DE-600 50.33 bkl Sato, Hideki verfasserin aut Effect of the channel geometries on flow regimes of a viscoelastic surfactant solution in a cavity 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Viscoelastic surfactant solutions exhibit a characteristic flow behavior in the cavity of a flow channel. These flows are categorized as the flow regimes of the Barus effect, bulge structure, and separation flow. The former two flow regimes sweep into the cavity, which helps increase the heat transfer efficiency of a heat exchanger with a cavity to increase the heat transfer surface. Therefore, this study visualized and quantified these characteristic flow behaviors in channels with different geometries, based on inertia and elasticity, using Reynolds number, Re, and Weissenberg number, Wi. The flow regimes were affected by both inertia and elasticity; thus, viscoelastic Mach number, Ma, was also useful for characterizing the flow transition. The reattachment and separation lengths of the streamlines that sweep the bottom wall of the cavity were quantified using Re and Ma. These characteristic flow lengths were characterized and modeled by dimensionless numbers in the flow regime of the Barus effect but were not uniformly characterized in the flow regime of the bulge structure. The bulge structure was an entirely unique flow regime, but it significantly reduced the recirculating regions in the cavity, which is promising for increasing heat transfer efficiency. Cavity flow Deborah number Inertia elastic instability Viscoelastic fluid Viscoelastic Mach number Kawata, Masaki verfasserin aut Hidema, Ruri verfasserin (orcid)0000-0002-0810-8820 aut Suzuki, Hiroshi verfasserin (orcid)0000-0003-1570-0029 aut Enthalten in Journal of non-Newtonian fluid mechanics Amsterdam : Elsevier, 1976 310 Online-Ressource (DE-627)320050823 (DE-600)2017337-4 (DE-576)11739890X 0377-0257 nnns volume:310 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_101 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_2003 GBV_ILN_2004 GBV_ILN_2005 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_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 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_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_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.33 Technische Strömungsmechanik AR 310
allfieldsGer	10.1016/j.jnnfm.2022.104946 doi (DE-627)ELV00884710X (ELSEVIER)S0377-0257(22)00165-3 DE-627 ger DE-627 rda eng 530 DE-600 50.33 bkl Sato, Hideki verfasserin aut Effect of the channel geometries on flow regimes of a viscoelastic surfactant solution in a cavity 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Viscoelastic surfactant solutions exhibit a characteristic flow behavior in the cavity of a flow channel. These flows are categorized as the flow regimes of the Barus effect, bulge structure, and separation flow. The former two flow regimes sweep into the cavity, which helps increase the heat transfer efficiency of a heat exchanger with a cavity to increase the heat transfer surface. Therefore, this study visualized and quantified these characteristic flow behaviors in channels with different geometries, based on inertia and elasticity, using Reynolds number, Re, and Weissenberg number, Wi. The flow regimes were affected by both inertia and elasticity; thus, viscoelastic Mach number, Ma, was also useful for characterizing the flow transition. The reattachment and separation lengths of the streamlines that sweep the bottom wall of the cavity were quantified using Re and Ma. These characteristic flow lengths were characterized and modeled by dimensionless numbers in the flow regime of the Barus effect but were not uniformly characterized in the flow regime of the bulge structure. The bulge structure was an entirely unique flow regime, but it significantly reduced the recirculating regions in the cavity, which is promising for increasing heat transfer efficiency. Cavity flow Deborah number Inertia elastic instability Viscoelastic fluid Viscoelastic Mach number Kawata, Masaki verfasserin aut Hidema, Ruri verfasserin (orcid)0000-0002-0810-8820 aut Suzuki, Hiroshi verfasserin (orcid)0000-0003-1570-0029 aut Enthalten in Journal of non-Newtonian fluid mechanics Amsterdam : Elsevier, 1976 310 Online-Ressource (DE-627)320050823 (DE-600)2017337-4 (DE-576)11739890X 0377-0257 nnns volume:310 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_101 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_2003 GBV_ILN_2004 GBV_ILN_2005 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_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 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_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_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.33 Technische Strömungsmechanik AR 310
allfieldsSound	10.1016/j.jnnfm.2022.104946 doi (DE-627)ELV00884710X (ELSEVIER)S0377-0257(22)00165-3 DE-627 ger DE-627 rda eng 530 DE-600 50.33 bkl Sato, Hideki verfasserin aut Effect of the channel geometries on flow regimes of a viscoelastic surfactant solution in a cavity 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Viscoelastic surfactant solutions exhibit a characteristic flow behavior in the cavity of a flow channel. These flows are categorized as the flow regimes of the Barus effect, bulge structure, and separation flow. The former two flow regimes sweep into the cavity, which helps increase the heat transfer efficiency of a heat exchanger with a cavity to increase the heat transfer surface. Therefore, this study visualized and quantified these characteristic flow behaviors in channels with different geometries, based on inertia and elasticity, using Reynolds number, Re, and Weissenberg number, Wi. The flow regimes were affected by both inertia and elasticity; thus, viscoelastic Mach number, Ma, was also useful for characterizing the flow transition. The reattachment and separation lengths of the streamlines that sweep the bottom wall of the cavity were quantified using Re and Ma. These characteristic flow lengths were characterized and modeled by dimensionless numbers in the flow regime of the Barus effect but were not uniformly characterized in the flow regime of the bulge structure. The bulge structure was an entirely unique flow regime, but it significantly reduced the recirculating regions in the cavity, which is promising for increasing heat transfer efficiency. Cavity flow Deborah number Inertia elastic instability Viscoelastic fluid Viscoelastic Mach number Kawata, Masaki verfasserin aut Hidema, Ruri verfasserin (orcid)0000-0002-0810-8820 aut Suzuki, Hiroshi verfasserin (orcid)0000-0003-1570-0029 aut Enthalten in Journal of non-Newtonian fluid mechanics Amsterdam : Elsevier, 1976 310 Online-Ressource (DE-627)320050823 (DE-600)2017337-4 (DE-576)11739890X 0377-0257 nnns volume:310 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_101 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_2003 GBV_ILN_2004 GBV_ILN_2005 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_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 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_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_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.33 Technische Strömungsmechanik AR 310
language	English
source	Enthalten in Journal of non-Newtonian fluid mechanics 310 volume:310
sourceStr	Enthalten in Journal of non-Newtonian fluid mechanics 310 volume:310
format_phy_str_mv	Article
bklname	Technische Strömungsmechanik
institution	findex.gbv.de
topic_facet	Cavity flow Deborah number Inertia elastic instability Viscoelastic fluid Viscoelastic Mach number
dewey-raw	530
isfreeaccess_bool	false
container_title	Journal of non-Newtonian fluid mechanics
authorswithroles_txt_mv	Sato, Hideki @@aut@@ Kawata, Masaki @@aut@@ Hidema, Ruri @@aut@@ Suzuki, Hiroshi @@aut@@
publishDateDaySort_date	2022-01-01T00:00:00Z
hierarchy_top_id	320050823
dewey-sort	3530
id	ELV00884710X
language_de	englisch
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author	Sato, Hideki
spellingShingle	Sato, Hideki ddc 530 bkl 50.33 misc Cavity flow misc Deborah number misc Inertia elastic instability misc Viscoelastic fluid misc Viscoelastic Mach number Effect of the channel geometries on flow regimes of a viscoelastic surfactant solution in a cavity
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topic_title	530 DE-600 50.33 bkl Effect of the channel geometries on flow regimes of a viscoelastic surfactant solution in a cavity Cavity flow Deborah number Inertia elastic instability Viscoelastic fluid Viscoelastic Mach number
topic	ddc 530 bkl 50.33 misc Cavity flow misc Deborah number misc Inertia elastic instability misc Viscoelastic fluid misc Viscoelastic Mach number
topic_unstemmed	ddc 530 bkl 50.33 misc Cavity flow misc Deborah number misc Inertia elastic instability misc Viscoelastic fluid misc Viscoelastic Mach number
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title	Effect of the channel geometries on flow regimes of a viscoelastic surfactant solution in a cavity
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title_full	Effect of the channel geometries on flow regimes of a viscoelastic surfactant solution in a cavity
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author_browse	Sato, Hideki Kawata, Masaki Hidema, Ruri Suzuki, Hiroshi
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title_sort	effect of the channel geometries on flow regimes of a viscoelastic surfactant solution in a cavity
title_auth	Effect of the channel geometries on flow regimes of a viscoelastic surfactant solution in a cavity
abstract	Viscoelastic surfactant solutions exhibit a characteristic flow behavior in the cavity of a flow channel. These flows are categorized as the flow regimes of the Barus effect, bulge structure, and separation flow. The former two flow regimes sweep into the cavity, which helps increase the heat transfer efficiency of a heat exchanger with a cavity to increase the heat transfer surface. Therefore, this study visualized and quantified these characteristic flow behaviors in channels with different geometries, based on inertia and elasticity, using Reynolds number, Re, and Weissenberg number, Wi. The flow regimes were affected by both inertia and elasticity; thus, viscoelastic Mach number, Ma, was also useful for characterizing the flow transition. The reattachment and separation lengths of the streamlines that sweep the bottom wall of the cavity were quantified using Re and Ma. These characteristic flow lengths were characterized and modeled by dimensionless numbers in the flow regime of the Barus effect but were not uniformly characterized in the flow regime of the bulge structure. The bulge structure was an entirely unique flow regime, but it significantly reduced the recirculating regions in the cavity, which is promising for increasing heat transfer efficiency.
abstractGer	Viscoelastic surfactant solutions exhibit a characteristic flow behavior in the cavity of a flow channel. These flows are categorized as the flow regimes of the Barus effect, bulge structure, and separation flow. The former two flow regimes sweep into the cavity, which helps increase the heat transfer efficiency of a heat exchanger with a cavity to increase the heat transfer surface. Therefore, this study visualized and quantified these characteristic flow behaviors in channels with different geometries, based on inertia and elasticity, using Reynolds number, Re, and Weissenberg number, Wi. The flow regimes were affected by both inertia and elasticity; thus, viscoelastic Mach number, Ma, was also useful for characterizing the flow transition. The reattachment and separation lengths of the streamlines that sweep the bottom wall of the cavity were quantified using Re and Ma. These characteristic flow lengths were characterized and modeled by dimensionless numbers in the flow regime of the Barus effect but were not uniformly characterized in the flow regime of the bulge structure. The bulge structure was an entirely unique flow regime, but it significantly reduced the recirculating regions in the cavity, which is promising for increasing heat transfer efficiency.
abstract_unstemmed	Viscoelastic surfactant solutions exhibit a characteristic flow behavior in the cavity of a flow channel. These flows are categorized as the flow regimes of the Barus effect, bulge structure, and separation flow. The former two flow regimes sweep into the cavity, which helps increase the heat transfer efficiency of a heat exchanger with a cavity to increase the heat transfer surface. Therefore, this study visualized and quantified these characteristic flow behaviors in channels with different geometries, based on inertia and elasticity, using Reynolds number, Re, and Weissenberg number, Wi. The flow regimes were affected by both inertia and elasticity; thus, viscoelastic Mach number, Ma, was also useful for characterizing the flow transition. The reattachment and separation lengths of the streamlines that sweep the bottom wall of the cavity were quantified using Re and Ma. These characteristic flow lengths were characterized and modeled by dimensionless numbers in the flow regime of the Barus effect but were not uniformly characterized in the flow regime of the bulge structure. The bulge structure was an entirely unique flow regime, but it significantly reduced the recirculating regions in the cavity, which is promising for increasing heat transfer efficiency.
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title_short	Effect of the channel geometries on flow regimes of a viscoelastic surfactant solution in a cavity
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doi_str	10.1016/j.jnnfm.2022.104946
up_date	2024-07-06T21:06:31.136Z
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Effect of the channel geometries on flow regimes of a viscoelastic surfactant solution in a cavity

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