Heat transfer and flow structures in an excited circular impinging jet

被引：173
|
作者：
Liu, TS
Sullivan, JP
机构：
[1] Sch. of Aeronautics and Astronautics, Purdue University, West Lafayette
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 1996年 / 39卷 / 17期
关键词：
D O I：
10.1016/0017-9310(96)00027-0
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Flow structures and heat transfer are investigated experimentally in an excited circular impinging jet with small nozzle-lo-plate spacing (H/D less than or equal to 2). The local heat transfer in the wall-jet region is found to be sensitive to the excitation frequency. Enhancement and reduction of the local heat transfer in the wall-jet region can be attained by forcing the impinging jet near the natural frequency and its subharmonic, respectively. The relationship between the vortical structures and local hear transfer is studied by the means of flow visualization, heat transfer spectra and correlation between velocity and heat transfer. Copyright (C) 1996 Elsevier Science Ltd.
引用
收藏
页码：3695 / 3706
页数：12
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