Impingement cooling of an isoflux flat plate by blockage jet

Impingement cooling of an isoflux flat plate by a round jet, generated through a perforated blockage plate, is experimentally investigated at a fixed jet Reynolds number of Rej = 20,000. With the perforation diameter (Dj) fixed, varying the thickness (t) of blockage plate forms three distinct turbul...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Liu, Y.Y. [verfasserIn] Bhaiyat, T.I. [verfasserIn] Schekman, S.W. [verfasserIn] Lu, T.J. [verfasserIn] Kim, T. [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2022

Schlagwörter:	Blockage jet Jet impingement Orifice jet Perforated blockage thickness Potential core length Tube jet

Übergeordnetes Werk:	Enthalten in: Applied thermal engineering - Amsterdam [u.a.] : Elsevier Science, 1996, 209
Übergeordnetes Werk:	volume:209

DOI / URN:	10.1016/j.applthermaleng.2022.118239

Katalog-ID:	ELV007699123

Internformat


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520			\|a Impingement cooling of an isoflux flat plate by a round jet, generated through a perforated blockage plate, is experimentally investigated at a fixed jet Reynolds number of Rej = 20,000. With the perforation diameter (Dj) fixed, varying the thickness (t) of blockage plate forms three distinct turbulent jets: (1)orifice jet (e.g., t/Dj ≤ 0.5), (2) blockage jet (e.g., 0.5 < t/Dj < 8.0), and (3) tube (or nozzle) jet (e.g., t/Dj ≥ 8.0). Thermofluidic characteristics of these jets in both free exit and impingement were measured and directly compared under consistent conditions. Particular focus was placed upon how these characteristics vary in the intermediate range of jet relative thickness t/Dj, with reference to the two limiting cases, namely, the orifice jet and the tube jet. It was demonstrated that the blockage jet behaves neither as an orifice jet, nor as a tube jet, and its properties cannot be considered interchangeable. Measurements of jet flow properties - exit velocity profile, potential core length and centerline turbulence - highlight the distinguishing features among the three jet types. While the blockage jet exhibits an intermediate thermal performance, the tube jet provides the poorest performance, and the orifice jet performs the best. Since it is not always possible to use an orifice jet in practice (e.g., due to structural constraints), this study provides evidence for the existence of optimal H/Dj for a given jet type (i.e., fixed t/Dj): correspondingly, both primary and secondary thermal peaks shift when t/Dj and H/Dj are varied.
650		4	\|a Blockage jet
650		4	\|a Jet impingement
650		4	\|a Orifice jet
650		4	\|a Perforated blockage thickness
650		4	\|a Potential core length
650		4	\|a Tube jet
700	1		\|a Bhaiyat, T.I. \|e verfasserin \|4 aut
700	1		\|a Schekman, S.W. \|e verfasserin \|4 aut
700	1		\|a Lu, T.J. \|e verfasserin \|4 aut
700	1		\|a Kim, T. \|e verfasserin \|4 aut
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publishDate	2022
allfields	10.1016/j.applthermaleng.2022.118239 doi (DE-627)ELV007699123 (ELSEVIER)S1359-4311(22)00200-9 DE-627 ger DE-627 rda eng 690 DE-600 52.43 bkl 52.52 bkl 52.42 bkl 50.38 bkl Liu, Y.Y. verfasserin aut Impingement cooling of an isoflux flat plate by blockage jet 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Impingement cooling of an isoflux flat plate by a round jet, generated through a perforated blockage plate, is experimentally investigated at a fixed jet Reynolds number of Rej = 20,000. With the perforation diameter (Dj) fixed, varying the thickness (t) of blockage plate forms three distinct turbulent jets: (1)orifice jet (e.g., t/Dj ≤ 0.5), (2) blockage jet (e.g., 0.5 < t/Dj < 8.0), and (3) tube (or nozzle) jet (e.g., t/Dj ≥ 8.0). Thermofluidic characteristics of these jets in both free exit and impingement were measured and directly compared under consistent conditions. Particular focus was placed upon how these characteristics vary in the intermediate range of jet relative thickness t/Dj, with reference to the two limiting cases, namely, the orifice jet and the tube jet. It was demonstrated that the blockage jet behaves neither as an orifice jet, nor as a tube jet, and its properties cannot be considered interchangeable. Measurements of jet flow properties - exit velocity profile, potential core length and centerline turbulence - highlight the distinguishing features among the three jet types. While the blockage jet exhibits an intermediate thermal performance, the tube jet provides the poorest performance, and the orifice jet performs the best. Since it is not always possible to use an orifice jet in practice (e.g., due to structural constraints), this study provides evidence for the existence of optimal H/Dj for a given jet type (i.e., fixed t/Dj): correspondingly, both primary and secondary thermal peaks shift when t/Dj and H/Dj are varied. Blockage jet Jet impingement Orifice jet Perforated blockage thickness Potential core length Tube jet Bhaiyat, T.I. verfasserin aut Schekman, S.W. verfasserin aut Lu, T.J. verfasserin aut Kim, T. verfasserin aut Enthalten in Applied thermal engineering Amsterdam [u.a.] : Elsevier Science, 1996 209 Online-Ressource (DE-627)320594122 (DE-600)2019322-1 (DE-576)256146322 1359-4311 nnns volume:209 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_2003 GBV_ILN_2004 GBV_ILN_2005 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_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_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 52.43 Kältetechnik 52.52 Thermische Energieerzeugung Wärmetechnik 52.42 Heizungstechnik Lüftungstechnik Klimatechnik 50.38 Technische Thermodynamik AR 209
spelling	10.1016/j.applthermaleng.2022.118239 doi (DE-627)ELV007699123 (ELSEVIER)S1359-4311(22)00200-9 DE-627 ger DE-627 rda eng 690 DE-600 52.43 bkl 52.52 bkl 52.42 bkl 50.38 bkl Liu, Y.Y. verfasserin aut Impingement cooling of an isoflux flat plate by blockage jet 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Impingement cooling of an isoflux flat plate by a round jet, generated through a perforated blockage plate, is experimentally investigated at a fixed jet Reynolds number of Rej = 20,000. With the perforation diameter (Dj) fixed, varying the thickness (t) of blockage plate forms three distinct turbulent jets: (1)orifice jet (e.g., t/Dj ≤ 0.5), (2) blockage jet (e.g., 0.5 < t/Dj < 8.0), and (3) tube (or nozzle) jet (e.g., t/Dj ≥ 8.0). Thermofluidic characteristics of these jets in both free exit and impingement were measured and directly compared under consistent conditions. Particular focus was placed upon how these characteristics vary in the intermediate range of jet relative thickness t/Dj, with reference to the two limiting cases, namely, the orifice jet and the tube jet. It was demonstrated that the blockage jet behaves neither as an orifice jet, nor as a tube jet, and its properties cannot be considered interchangeable. Measurements of jet flow properties - exit velocity profile, potential core length and centerline turbulence - highlight the distinguishing features among the three jet types. While the blockage jet exhibits an intermediate thermal performance, the tube jet provides the poorest performance, and the orifice jet performs the best. Since it is not always possible to use an orifice jet in practice (e.g., due to structural constraints), this study provides evidence for the existence of optimal H/Dj for a given jet type (i.e., fixed t/Dj): correspondingly, both primary and secondary thermal peaks shift when t/Dj and H/Dj are varied. Blockage jet Jet impingement Orifice jet Perforated blockage thickness Potential core length Tube jet Bhaiyat, T.I. verfasserin aut Schekman, S.W. verfasserin aut Lu, T.J. verfasserin aut Kim, T. verfasserin aut Enthalten in Applied thermal engineering Amsterdam [u.a.] : Elsevier Science, 1996 209 Online-Ressource (DE-627)320594122 (DE-600)2019322-1 (DE-576)256146322 1359-4311 nnns volume:209 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_2003 GBV_ILN_2004 GBV_ILN_2005 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_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_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 52.43 Kältetechnik 52.52 Thermische Energieerzeugung Wärmetechnik 52.42 Heizungstechnik Lüftungstechnik Klimatechnik 50.38 Technische Thermodynamik AR 209
allfields_unstemmed	10.1016/j.applthermaleng.2022.118239 doi (DE-627)ELV007699123 (ELSEVIER)S1359-4311(22)00200-9 DE-627 ger DE-627 rda eng 690 DE-600 52.43 bkl 52.52 bkl 52.42 bkl 50.38 bkl Liu, Y.Y. verfasserin aut Impingement cooling of an isoflux flat plate by blockage jet 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Impingement cooling of an isoflux flat plate by a round jet, generated through a perforated blockage plate, is experimentally investigated at a fixed jet Reynolds number of Rej = 20,000. With the perforation diameter (Dj) fixed, varying the thickness (t) of blockage plate forms three distinct turbulent jets: (1)orifice jet (e.g., t/Dj ≤ 0.5), (2) blockage jet (e.g., 0.5 < t/Dj < 8.0), and (3) tube (or nozzle) jet (e.g., t/Dj ≥ 8.0). Thermofluidic characteristics of these jets in both free exit and impingement were measured and directly compared under consistent conditions. Particular focus was placed upon how these characteristics vary in the intermediate range of jet relative thickness t/Dj, with reference to the two limiting cases, namely, the orifice jet and the tube jet. It was demonstrated that the blockage jet behaves neither as an orifice jet, nor as a tube jet, and its properties cannot be considered interchangeable. Measurements of jet flow properties - exit velocity profile, potential core length and centerline turbulence - highlight the distinguishing features among the three jet types. While the blockage jet exhibits an intermediate thermal performance, the tube jet provides the poorest performance, and the orifice jet performs the best. Since it is not always possible to use an orifice jet in practice (e.g., due to structural constraints), this study provides evidence for the existence of optimal H/Dj for a given jet type (i.e., fixed t/Dj): correspondingly, both primary and secondary thermal peaks shift when t/Dj and H/Dj are varied. Blockage jet Jet impingement Orifice jet Perforated blockage thickness Potential core length Tube jet Bhaiyat, T.I. verfasserin aut Schekman, S.W. verfasserin aut Lu, T.J. verfasserin aut Kim, T. verfasserin aut Enthalten in Applied thermal engineering Amsterdam [u.a.] : Elsevier Science, 1996 209 Online-Ressource (DE-627)320594122 (DE-600)2019322-1 (DE-576)256146322 1359-4311 nnns volume:209 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_2003 GBV_ILN_2004 GBV_ILN_2005 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_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_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 52.43 Kältetechnik 52.52 Thermische Energieerzeugung Wärmetechnik 52.42 Heizungstechnik Lüftungstechnik Klimatechnik 50.38 Technische Thermodynamik AR 209
allfieldsGer	10.1016/j.applthermaleng.2022.118239 doi (DE-627)ELV007699123 (ELSEVIER)S1359-4311(22)00200-9 DE-627 ger DE-627 rda eng 690 DE-600 52.43 bkl 52.52 bkl 52.42 bkl 50.38 bkl Liu, Y.Y. verfasserin aut Impingement cooling of an isoflux flat plate by blockage jet 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Impingement cooling of an isoflux flat plate by a round jet, generated through a perforated blockage plate, is experimentally investigated at a fixed jet Reynolds number of Rej = 20,000. With the perforation diameter (Dj) fixed, varying the thickness (t) of blockage plate forms three distinct turbulent jets: (1)orifice jet (e.g., t/Dj ≤ 0.5), (2) blockage jet (e.g., 0.5 < t/Dj < 8.0), and (3) tube (or nozzle) jet (e.g., t/Dj ≥ 8.0). Thermofluidic characteristics of these jets in both free exit and impingement were measured and directly compared under consistent conditions. Particular focus was placed upon how these characteristics vary in the intermediate range of jet relative thickness t/Dj, with reference to the two limiting cases, namely, the orifice jet and the tube jet. It was demonstrated that the blockage jet behaves neither as an orifice jet, nor as a tube jet, and its properties cannot be considered interchangeable. Measurements of jet flow properties - exit velocity profile, potential core length and centerline turbulence - highlight the distinguishing features among the three jet types. While the blockage jet exhibits an intermediate thermal performance, the tube jet provides the poorest performance, and the orifice jet performs the best. Since it is not always possible to use an orifice jet in practice (e.g., due to structural constraints), this study provides evidence for the existence of optimal H/Dj for a given jet type (i.e., fixed t/Dj): correspondingly, both primary and secondary thermal peaks shift when t/Dj and H/Dj are varied. Blockage jet Jet impingement Orifice jet Perforated blockage thickness Potential core length Tube jet Bhaiyat, T.I. verfasserin aut Schekman, S.W. verfasserin aut Lu, T.J. verfasserin aut Kim, T. verfasserin aut Enthalten in Applied thermal engineering Amsterdam [u.a.] : Elsevier Science, 1996 209 Online-Ressource (DE-627)320594122 (DE-600)2019322-1 (DE-576)256146322 1359-4311 nnns volume:209 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_2003 GBV_ILN_2004 GBV_ILN_2005 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_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_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 52.43 Kältetechnik 52.52 Thermische Energieerzeugung Wärmetechnik 52.42 Heizungstechnik Lüftungstechnik Klimatechnik 50.38 Technische Thermodynamik AR 209
allfieldsSound	10.1016/j.applthermaleng.2022.118239 doi (DE-627)ELV007699123 (ELSEVIER)S1359-4311(22)00200-9 DE-627 ger DE-627 rda eng 690 DE-600 52.43 bkl 52.52 bkl 52.42 bkl 50.38 bkl Liu, Y.Y. verfasserin aut Impingement cooling of an isoflux flat plate by blockage jet 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Impingement cooling of an isoflux flat plate by a round jet, generated through a perforated blockage plate, is experimentally investigated at a fixed jet Reynolds number of Rej = 20,000. With the perforation diameter (Dj) fixed, varying the thickness (t) of blockage plate forms three distinct turbulent jets: (1)orifice jet (e.g., t/Dj ≤ 0.5), (2) blockage jet (e.g., 0.5 < t/Dj < 8.0), and (3) tube (or nozzle) jet (e.g., t/Dj ≥ 8.0). Thermofluidic characteristics of these jets in both free exit and impingement were measured and directly compared under consistent conditions. Particular focus was placed upon how these characteristics vary in the intermediate range of jet relative thickness t/Dj, with reference to the two limiting cases, namely, the orifice jet and the tube jet. It was demonstrated that the blockage jet behaves neither as an orifice jet, nor as a tube jet, and its properties cannot be considered interchangeable. Measurements of jet flow properties - exit velocity profile, potential core length and centerline turbulence - highlight the distinguishing features among the three jet types. While the blockage jet exhibits an intermediate thermal performance, the tube jet provides the poorest performance, and the orifice jet performs the best. Since it is not always possible to use an orifice jet in practice (e.g., due to structural constraints), this study provides evidence for the existence of optimal H/Dj for a given jet type (i.e., fixed t/Dj): correspondingly, both primary and secondary thermal peaks shift when t/Dj and H/Dj are varied. Blockage jet Jet impingement Orifice jet Perforated blockage thickness Potential core length Tube jet Bhaiyat, T.I. verfasserin aut Schekman, S.W. verfasserin aut Lu, T.J. verfasserin aut Kim, T. verfasserin aut Enthalten in Applied thermal engineering Amsterdam [u.a.] : Elsevier Science, 1996 209 Online-Ressource (DE-627)320594122 (DE-600)2019322-1 (DE-576)256146322 1359-4311 nnns volume:209 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_2003 GBV_ILN_2004 GBV_ILN_2005 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_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_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 52.43 Kältetechnik 52.52 Thermische Energieerzeugung Wärmetechnik 52.42 Heizungstechnik Lüftungstechnik Klimatechnik 50.38 Technische Thermodynamik AR 209
language	English
source	Enthalten in Applied thermal engineering 209 volume:209
sourceStr	Enthalten in Applied thermal engineering 209 volume:209
format_phy_str_mv	Article
bklname	Kältetechnik Thermische Energieerzeugung Wärmetechnik Heizungstechnik Lüftungstechnik Klimatechnik Technische Thermodynamik
institution	findex.gbv.de
topic_facet	Blockage jet Jet impingement Orifice jet Perforated blockage thickness Potential core length Tube jet
dewey-raw	690
isfreeaccess_bool	false
container_title	Applied thermal engineering
authorswithroles_txt_mv	Liu, Y.Y. @@aut@@ Bhaiyat, T.I. @@aut@@ Schekman, S.W. @@aut@@ Lu, T.J. @@aut@@ Kim, T. @@aut@@
publishDateDaySort_date	2022-01-01T00:00:00Z
hierarchy_top_id	320594122
dewey-sort	3690
id	ELV007699123
language_de	englisch
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With the perforation diameter (Dj) fixed, varying the thickness (t) of blockage plate forms three distinct turbulent jets: (1)orifice jet (e.g., t/Dj ≤ 0.5), (2) blockage jet (e.g., 0.5 < t/Dj < 8.0), and (3) tube (or nozzle) jet (e.g., t/Dj ≥ 8.0). Thermofluidic characteristics of these jets in both free exit and impingement were measured and directly compared under consistent conditions. Particular focus was placed upon how these characteristics vary in the intermediate range of jet relative thickness t/Dj, with reference to the two limiting cases, namely, the orifice jet and the tube jet. It was demonstrated that the blockage jet behaves neither as an orifice jet, nor as a tube jet, and its properties cannot be considered interchangeable. Measurements of jet flow properties - exit velocity profile, potential core length and centerline turbulence - highlight the distinguishing features among the three jet types. 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author	Liu, Y.Y.
spellingShingle	Liu, Y.Y. ddc 690 bkl 52.43 bkl 52.52 bkl 52.42 bkl 50.38 misc Blockage jet misc Jet impingement misc Orifice jet misc Perforated blockage thickness misc Potential core length misc Tube jet Impingement cooling of an isoflux flat plate by blockage jet
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topic_title	690 DE-600 52.43 bkl 52.52 bkl 52.42 bkl 50.38 bkl Impingement cooling of an isoflux flat plate by blockage jet Blockage jet Jet impingement Orifice jet Perforated blockage thickness Potential core length Tube jet
topic	ddc 690 bkl 52.43 bkl 52.52 bkl 52.42 bkl 50.38 misc Blockage jet misc Jet impingement misc Orifice jet misc Perforated blockage thickness misc Potential core length misc Tube jet
topic_unstemmed	ddc 690 bkl 52.43 bkl 52.52 bkl 52.42 bkl 50.38 misc Blockage jet misc Jet impingement misc Orifice jet misc Perforated blockage thickness misc Potential core length misc Tube jet
topic_browse	ddc 690 bkl 52.43 bkl 52.52 bkl 52.42 bkl 50.38 misc Blockage jet misc Jet impingement misc Orifice jet misc Perforated blockage thickness misc Potential core length misc Tube jet
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title	Impingement cooling of an isoflux flat plate by blockage jet
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title_full	Impingement cooling of an isoflux flat plate by blockage jet
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author_browse	Liu, Y.Y. Bhaiyat, T.I. Schekman, S.W. Lu, T.J. Kim, T.
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doi_str_mv	10.1016/j.applthermaleng.2022.118239
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title_sort	impingement cooling of an isoflux flat plate by blockage jet
title_auth	Impingement cooling of an isoflux flat plate by blockage jet
abstract	Impingement cooling of an isoflux flat plate by a round jet, generated through a perforated blockage plate, is experimentally investigated at a fixed jet Reynolds number of Rej = 20,000. With the perforation diameter (Dj) fixed, varying the thickness (t) of blockage plate forms three distinct turbulent jets: (1)orifice jet (e.g., t/Dj ≤ 0.5), (2) blockage jet (e.g., 0.5 < t/Dj < 8.0), and (3) tube (or nozzle) jet (e.g., t/Dj ≥ 8.0). Thermofluidic characteristics of these jets in both free exit and impingement were measured and directly compared under consistent conditions. Particular focus was placed upon how these characteristics vary in the intermediate range of jet relative thickness t/Dj, with reference to the two limiting cases, namely, the orifice jet and the tube jet. It was demonstrated that the blockage jet behaves neither as an orifice jet, nor as a tube jet, and its properties cannot be considered interchangeable. Measurements of jet flow properties - exit velocity profile, potential core length and centerline turbulence - highlight the distinguishing features among the three jet types. While the blockage jet exhibits an intermediate thermal performance, the tube jet provides the poorest performance, and the orifice jet performs the best. Since it is not always possible to use an orifice jet in practice (e.g., due to structural constraints), this study provides evidence for the existence of optimal H/Dj for a given jet type (i.e., fixed t/Dj): correspondingly, both primary and secondary thermal peaks shift when t/Dj and H/Dj are varied.
abstractGer	Impingement cooling of an isoflux flat plate by a round jet, generated through a perforated blockage plate, is experimentally investigated at a fixed jet Reynolds number of Rej = 20,000. With the perforation diameter (Dj) fixed, varying the thickness (t) of blockage plate forms three distinct turbulent jets: (1)orifice jet (e.g., t/Dj ≤ 0.5), (2) blockage jet (e.g., 0.5 < t/Dj < 8.0), and (3) tube (or nozzle) jet (e.g., t/Dj ≥ 8.0). Thermofluidic characteristics of these jets in both free exit and impingement were measured and directly compared under consistent conditions. Particular focus was placed upon how these characteristics vary in the intermediate range of jet relative thickness t/Dj, with reference to the two limiting cases, namely, the orifice jet and the tube jet. It was demonstrated that the blockage jet behaves neither as an orifice jet, nor as a tube jet, and its properties cannot be considered interchangeable. Measurements of jet flow properties - exit velocity profile, potential core length and centerline turbulence - highlight the distinguishing features among the three jet types. While the blockage jet exhibits an intermediate thermal performance, the tube jet provides the poorest performance, and the orifice jet performs the best. Since it is not always possible to use an orifice jet in practice (e.g., due to structural constraints), this study provides evidence for the existence of optimal H/Dj for a given jet type (i.e., fixed t/Dj): correspondingly, both primary and secondary thermal peaks shift when t/Dj and H/Dj are varied.
abstract_unstemmed	Impingement cooling of an isoflux flat plate by a round jet, generated through a perforated blockage plate, is experimentally investigated at a fixed jet Reynolds number of Rej = 20,000. With the perforation diameter (Dj) fixed, varying the thickness (t) of blockage plate forms three distinct turbulent jets: (1)orifice jet (e.g., t/Dj ≤ 0.5), (2) blockage jet (e.g., 0.5 < t/Dj < 8.0), and (3) tube (or nozzle) jet (e.g., t/Dj ≥ 8.0). Thermofluidic characteristics of these jets in both free exit and impingement were measured and directly compared under consistent conditions. Particular focus was placed upon how these characteristics vary in the intermediate range of jet relative thickness t/Dj, with reference to the two limiting cases, namely, the orifice jet and the tube jet. It was demonstrated that the blockage jet behaves neither as an orifice jet, nor as a tube jet, and its properties cannot be considered interchangeable. Measurements of jet flow properties - exit velocity profile, potential core length and centerline turbulence - highlight the distinguishing features among the three jet types. While the blockage jet exhibits an intermediate thermal performance, the tube jet provides the poorest performance, and the orifice jet performs the best. Since it is not always possible to use an orifice jet in practice (e.g., due to structural constraints), this study provides evidence for the existence of optimal H/Dj for a given jet type (i.e., fixed t/Dj): correspondingly, both primary and secondary thermal peaks shift when t/Dj and H/Dj are varied.
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title_short	Impingement cooling of an isoflux flat plate by blockage jet
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author2	Bhaiyat, T.I. Schekman, S.W. Lu, T.J. Kim, T.
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up_date	2024-07-06T17:09:14.813Z
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Impingement cooling of an isoflux flat plate by blockage jet

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