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Titolo:
Endwall heat transfer characteristics with a single oblique pin fin
Autore:
Matsumoto, R; Kikkawa, S; Senda, M; Suzuki, M;
Indirizzi:
Kansai Univ, Dept Mech Syst Engn, Osaka 5648680, Japan Kansai Univ OsakaJapan 5648680 ept Mech Syst Engn, Osaka 5648680, Japan Doshisha Univ, Dept Mech Engn, Kyoto 6100321, Japan Doshisha Univ Kyoto Japan 6100321 , Dept Mech Engn, Kyoto 6100321, Japan Keyence Corp, Osaka 5338555, Japan Keyence Corp Osaka Japan 5338555Keyence Corp, Osaka 5338555, Japan
Titolo Testata:
JOURNAL OF ENHANCED HEAT TRANSFER
fascicolo: 3, volume: 7, anno: 2000,
pagine: 167 - 184
SICI:
1065-5131(2000)7:3<167:EHTCWA>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
MASS-TRANSFER; SURFACE;
Keywords:
forced convective heat transfer; pin fin; endwall; thermosensitive liquid crystal; flow visualization; image processing;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
9
Recensione:
Indirizzi per estratti:
Indirizzo: Matsumoto, R Kansai Univ, Dept Mech Syst Engn, 3-3-35 Yamate Cho, Osaka 5648680, Japan Kansai Univ 3-3-35 Yamate Cho Osaka Japan 5648680 680, Japan
Citazione:
R. Matsumoto et al., "Endwall heat transfer characteristics with a single oblique pin fin", J ENHANC H, 7(3), 2000, pp. 167-184

Abstract

Effect of a single oblique pin fin on the endwall heat transfer is dealt with in the present paper. Pin fin was inclined to the streamwise direction from theta = -60 degrees (upstreamwise) to + 60 degrees (downstreamwise) inevery 15 degrees, where theta is an angle between the axis of the pin fin and the normal of the endwall. Thermosensitive liquid crystal was used to measure the local heat transfer coefficient on the endwall. When the pin finwas inclined upstreamwise at theta = - 45 degrees, the heat transfer coefficient on the endwall and the area of enhanced heat transfer became maximum. From the flow visualization by the smoke wire method, the horseshoe Vortices were observed around the pin fin when the pin fin was inclined upstreamwise. Especially, for the case of theta = - 45 degrees, it was found that the heat transfer was enhanced by the impingement of the wake flow on the immediate downstream endwall of the pin fin. However, for the case of the pinfin inclined downstreamwise, there was no effect on the enhancement of heat transfer on the endwall.

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Documento generato il 30/03/20 alle ore 13:26:05