Experimental investigation on flow characteristics of a transverse jet with an upstream vortex generator

作     者：Yan-hui ZHAO Jian-han LIANG Shun-ping ZHANG Hong-yu REN Yu-xin ZHAO Shun-hua YANG Yan-hui ZHAO;Jian-han LIANG;Shun-ping ZHANG;Hong-yu REN;Yu-xin ZHAO;Shun-hua YANG

作者机构：Science and Technology on Scramjet LaboratoryChina Aerodynamics Research and Development CenterMianyang 621000China Science and Technology on Scramjet LaboratoryNational University of Defense TechnologyChangsha 410073China 

基　　金：supported by the National Natural Science Foundation of China(Nos.91541203 and 51676204) the Fenglei Youth Innovation Fund of China Aerodynamics Research and Development Center(No.PJD20170186) 

出 版 物：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 (浙江大学学报（英文版）A辑（应用物理与工程）)

年 卷 期：2020年第21卷第8期

页      码：636-651页

摘      要：This paper aims at probing the flow characteristics of a jet in supersonic crossflow(JISC)by installing a vortex generator(VG)upstream of the jet *** planar laser scattering(NPLS)and stereo-particle image velocimetry(SPIV)technologies were employed to observe the flowfield,and three cases were designed for ***0 stands for JISC without passive *** CASE1 and CASE2,VG is installed at 20 mm and 80 mm upstream away from the jet orifice,*** flow structures show that two flow modes exist when the VG wake interacts with the *** CASE1,vortices are induced from both sides of the jet plume because of the VG *** leads to a complex streamwise vortex *** and lateral diffusion are *** CASE2,intermittent large-scale eddies in the VG wake cause large streamwise vortices at the windward side of the *** penetration depth is also enhanced while the lateral diffusion is *** addition,experimental results show that the penetration depth is approximately 8.5%higher in CASE1 than that in CASE0,and the lateral diffusion is larger by about 17.0%.In CASE2,the penetration is increased by about 26.2%,while the lateral diffusion is enhanced by just 0.5%.

主 题 词：Vortex generator(VG) Jet in supersonic crossflow(JISC) Penetration depth and lateral diffusion Vortices structures 

学科分类：080704[080704] 080103[080103] 08[工学] 0807[工学-电子信息类] 0801[工学-力学类] 

核心收录：

D　O　I：10.1631/jzus.A1900392

馆 藏 号：203978404...