Application of SST Model with Flow Transition in Impinging Jet Heat Transfer

被引：0

作者：

Huang H. ^{[1
]}

Sun T. ^{[1
]}

You T. ^{[2
]}

Zhang G. ^{[1
,3
,4
]}

Hui D. ^{[1
]}

Zong Z. ^{[1
,3
,4
]}

机构：

[1] School of Naval Architecture, Dalian University of Technology, Dalian, 116024, Liaoning

[2] Beijing Institute of Astronautical Systems Engineering, Beijing

[3] State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian, 116024, Liaoning

[4] Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai

来源：

Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University | 2019年 / 53卷 / 05期

关键词：

Adverse pressure gradient; Heat transfer; Impinging jet; Intermittent turbulence model; SST model;

D O I：

10.7652/xjtuxb201905013

中图分类号：

学科分类号：

摘要：

For impinging jet heat transfer, traditional Reynolds-averaged Navier-Stokes (RANS) turbulence models suffer the problem of inaccuracy. An SST k-ω turbulence model coupled with the Kato-Launder model and intermittent transition model was proposed to solve the above problem. The numerical results of heat transfer and mean velocity were compared with experimental data and other numerical results published in the literature for the case of H/B=4 and Re=20 000, which shows that the modified model has good performance in predicting Nusselt number distribution as well as fluid flow behavior. The pressure distribution and Nusselt number distribution for different nozzle-plate spacings of 2, 4 and 9 with Re=20 000 were further investigated. The results show that for H/B≤4, the pressure increases along the impinging plate downstream and there is an obvious second peak; for H/B=9, there is a nearly constant pressure distribution and the second peak disappears. It indicates that the second peak is associated with the adverse pressure gradient. © 2019, Editorial Office of Journal of Xi'an Jiaotong University. All right reserved.

引用

页码：92 / 99

页数：7

共 25 条

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