Numerical Simulation of Turbulent Flow on a High-Speed Crossflow Blowing over Array Slots with Weak Injection

被引：1

作者：

Lin, Mei ^{[1
]}

Xu, Xuefang ^{[1
]}

Wu, Bo ^{[1
]}

Wang, Liangbi ^{[2
]}

Wang, Qiuwang ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Energy & Power Engn, Xian 710049, Shaanxi, Peoples R China

[2] Lanzhou Jiaotong Univ, Dept Mech Engn, Lanzhou 730070, Gansu, Peoples R China

来源：

CLEAN, EFFICIENT AND AFFORDABLE ENERGY FOR A SUSTAINABLE FUTURE | 2015年 / 75卷

关键词：

Turbulent flow; High-speed crossflow; Weak jet; Array slots;

D O I：

10.1016/j.egypro.2015.07.444

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A numerical simulation is conducted to investigate the characteristics of weak flow generated by array slots jets in a high-speed crossflow. The jet to crossflow velocity ratio is 0.055 and the crossflow velocity is 100m/s. Flow field and pressure drop performances are compared between the jet with and without array slots. The results show that the counter-rotating secondary vortex from the jet with array slots is more clearly induced by the jet-to-crossflow interaction than that without array slots, and the maximum of negative pressure of jet with array slots is almost the same as that without slots for crossflow, while the skin friction coefficient is 7% higher than that without slots for jet flow. (C) 2015 The Authors. Published by Elsevier Ltd.

引用

页码：1734 / 1739

页数：6

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