Influence of exhaust gas ingestion on engine inlet distortion

被引：0
作者：
Wang J. [1 ]
Wang T. [1 ]
Liu Y. [1 ]
Ren D. [1 ]
机构：
[1] Chinese Flight Test Establishment, Aviation Industry Corporation of China, Limited, Xi'an
来源：
Hangkong Dongli Xuebao/Journal of Aerospace Power | 2021年 / 36卷 / 01期
关键词：
Exhaust gas ingestion; Flow field measurement; Ground test; Pressure distortion; Temperature distortion;
D O I：
10.13224/j.cnki.jasp.2021.01.012
中图分类号：
学科分类号：
摘要：
In order to understand the distortion characteristics of the engine inlet face due to exhaust gas ingestion, a ground test was done to acquire the total pressure and total temperature data of the engine inlet face. Based on the measurement data, an analytical study on the features of the temperature and pressure distortion and the influences on the temperature distortion intensity were carried out. The results showed that the deflected exhaust gas can be ingested by the inlet, which could produce a temperature distortion on the engine inlet face, in this situation the flow field on the engine inlet face was a combination of temperature and pressure distortion. The hot exhaust gas ingestion can raise the pressure in the low pressure region on the engine inlet face, and lower the steady pressure distortion. As the engine working thrust lever was improved and the working time was increased, the temperature distortion intensity peak was higher. The change of the temperature flow field lagged behind that of throttle, indicating a dynamic changing flow field, but the temperature rise rate was relatively low. © 2021, Editorial Department of Journal of Aerospace Power. All right reserved.
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页码：97 / 103
页数：6
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