Non-Uniform Blowing Device for Scramjet Direct-Connect Test

被引：0
|
作者：
Shi M.-J. [1 ,2 ]
Ouyang H. [1 ]
Wang W. [2 ]
Deng W.-X. [1 ]
机构：
[1] Science and Technology on Scramjet Laboratory, China Aerodynamics Research and Development Center, Mianyang
[2] School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Chengdu
来源：
Tuijin Jishu/Journal of Propulsion Technology | 2022年 / 43卷 / 05期
关键词：
Blowing device; Blowing parameters; Direct-connect test; Isolator; Non-uniform flow; Scramjet;
D O I：
10.13675/j.cnki.tjjs.200522
中图分类号：
学科分类号：
摘要：
A non-uniform blowing device was added between the direct-connect facility nozzle and scramjet isolator to simulate the real flight flow conditions. The cross section of scramjet isolator is rectangular. The blowing device is an additional isolator with slits. The slits are distributed on the upper and lower wall surfaces of the device, and air is blown into flowfield from these slits to make the uniform experimental flow transforming to non-uniform. Numerical simulation about blowing parameters were conducted using commercial software Fluent. The flow paramaters at isolator entry simulates those of flight Ma 6.0. Geometry parameters of blowing device include slit location, slit width and blowing device length. These geometry parameters are compared to design the optimized blowing device. The results show that this blowing device could simulate the non-uniform flow of isolator, the deviation of mass-weighted average Mach number between the blowing condition and free-jet test is within 0.02 (about 0.8%), deviation of total pressure is within 0.03MPa (about 2.1%). © 2022, Editorial Department of Journal of Propulsion Technology. All right reserved.
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页码：318 / 324
页数：6
相关论文
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