Experimental and numerical investigation of isolator in three-dimensional inward turning inlet

被引：10
|
作者：
Ren, Hu [1 ]
Yuan, Huacheng [2 ]
Zhang, Jinsheng [2 ]
Zhang, Binqian [1 ]
机构：
[1] Northwestern Polytech Univ, Sch Aeronaut, Xian 710072, Peoples R China
[2] Nanjing Univ Aeronaut & Astronaut, Coll Energy & Power Engn, Nanjing 210016, Jiangsu, Peoples R China
来源：
AEROSPACE SCIENCE AND TECHNOLOGY | 2019年 / 95卷
关键词：
Inward turning inlet; Isolator; Shock train; Numerical simulation; Wind tunnel experiment; SHOCK-TRAIN;
D O I：
10.1016/j.ast.2019.105435
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
Numerical simulation about a three-dimensional inward turning inlet with isolator and combustor was performed to study the flow field structure and flow characteristics of shock train. Cold and hot model wind tunnel experiments were carried out to compare the effects of cold and hot condition on shock train characteristics. The result shows that no oscillation phenomenon of the shock train was observed in the cold model experiment, but oscillation back and forth occurred in the hot model experiment. The trend of pressure distributions are consistent in cold and hot condition before the combustor. But it changed in the combustor where the pressure presented a continuous rising trend in cold condition, while a trend of rising first and then descending in hot condition. Establishing the corresponding relationship between throttling ratio and gas-oil ratio is beneficial to predict the property of the isolator in hot condition according to the cold condition. (C) 2019 Elsevier Masson SAS. All rights reserved.
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页数：8
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