Design and Verification of Gas Sampling Probe for Afterburner Test

被引：0
|
作者：
Liu C.-Y. [1 ,2 ]
Qi D.-D. [2 ]
Feng D.-Q. [2 ]
Song W.-Y. [1 ]
Zhang J. [2 ]
机构：
[1] School of Power and Energy, Northwestern Polytechnical University, Xi’an
[2] AECC Sichuan Gas Turbine Establishment, Mianyang
来源：
Tuijin Jishu/Journal of Propulsion Technology | 2023年 / 44卷 / 05期
关键词：
Aeroengine; Afterburner; Double-cavity cooling; Gas analysis; Multiple linear regression; Sampling probe;
D O I：
10.13675/j.cnki.tjjs.22010009
中图分类号：
学科分类号：
摘要：
In order to satisfy the application requirements of gas sampling probe for aero-engine afterburner test under the high temperature and low pressure condition，a composite samples probe with double-layer cooling cavity was designed，and it was manufactured applying additive manufacturing technology，the sampling performance was verified and analysed by test and numerical simulation. The research shows that the sample gas of standard requirement can be obtained using air and water as cooling medium respectively in the inner and outer cooling cavity，the test results of combustion performance also meet the engineering application requirements. The linear correlation between gas flow field parameters and sampling performance were found，in which the pressure is the most important parameter，the maximum fitting deviation of some fitting equations obtained from optimal subset model in the multiple linear regression analysis is not more than 4%，which can be applied for sampling performance prediction of the same type probe within a certain range. The method for probe numerical simulation of 3D fluid-solid coupling heat transfer in this paper is proved to be highly reliable，the calculation errors of each performance parameter are no more than 8%，which can be used for aided design of sampling probe on flow and heat transfer structure. © 2023 Journal of Propulsion Technology. All rights reserved.
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