Jet impingement heat transfer from lobed nozzles

被引：61

作者：

Herrero Martin, R. ^{[1
]}

Buchlin, J. M. ^{[1
]}

机构：

[1] von Karman Inst Fluid Dynam, B-1640 Rhode St Genese, Belgium

来源：

INTERNATIONAL JOURNAL OF THERMAL SCIENCES | 2011年 / 50卷 / 07期

关键词：

Lobed nozzle; Impinging jet; Local heat transfer; Infrared thermography; SMOOTH FLAT SURFACE; IMPINGING AIR-JET; MASS-TRANSFER; FLOW; PLATE; ENHANCEMENT; GAS;

D O I：

10.1016/j.ijthermalsci.2011.02.017

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The paper presents an experimental investigation of heat transfer obtained with impinging gas jets. Lobed nozzles are tested. The study parameters are the lobe geometry, the jet Reynolds number, Re, and the normalised standoff distance, z/D. The quantitative infrared thermography associated with the thermofoil technique is applied. At high Reynolds number (Re >= 15,000)) and small normalised standoff (z/D <= 1), the three-lobe nozzle affords performance better than the other nozzles. As the normalised standoff distance increases and exceeds z/D = 7, the 4-lobe yields better performance. (C) 2011 Elsevier Masson SAS. All rights reserved.

引用

页码：1199 / 1206

页数：8

共 43 条

[1]

[Anonymous], X2778 NASA TM

[2] Heat Transfer Measurements From a Surface With Uniform Heat Flux and an Impinging Jet [J].

Baughn, J. W. ;

Shimizu, S. .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1989, 111 (1-4) :1096-1098

[3] Analysis of an impinging two-dimensional jet [J].

Beitelmal, AH ;

Shah, AJ ;

Saad, MA .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 2006, 128 (03) :307-310

[4] Effects of nozzle-inlet chamfering on pressure drop and heat transfer in confined air jet impingement [J].

Brignoni, LA ;

Garimella, SV .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2000, 43 (07) :1133-1139

[5]

BUCHLIN JM, 2010, 2 INT C EN CONV CONS

[6]

BUCHLIN JM, 2000, LECT SERIES 2003 03

[7] IMPINGING JET STUDIES FOR TURBULENCE MODEL ASSESSMENT .1. FLOW-FIELD EXPERIMENTS [J].

COOPER, D ;

JACKSON, DC ;

LAUNDER, BE ;

LIAO, GX .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1993, 36 (10) :2675-2684

[8]

DVORAK V, 2007, P C FLUID DYN

[9] Heat transfer to impinging round jets with triangular tabs [J].

Gao, N ;

Sun, H ;

Ewing, D .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2003, 46 (14) :2557-2569

[10] HEAT TRANSFER CHARACTERISTICS OF IMPINGING 2-DIMENSIONAL AIR JETS [J].

GARDON, R ;

AKFIRAT, JC .

JOURNAL OF HEAT TRANSFER, 1966, 88 (01) :101-&

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