Docking test verification of high temperature gas ejector system

ZHAO Fang; REN Zebin; WANG Haifeng; LI Xianfeng; SHI Yu; GUO Longde

doi:10.11729/syltlx20190068

Volume 34 Issue 3

Jun. 2020

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Journal of Experiments in Fluid Mechanics > 2020 > 34(3): 111-116. > DOI: 10.11729/syltlx20190068

ZHAO Fang, REN Zebin, WANG Haifeng, LI Xianfeng, SHI Yu, GUO Longde. Docking test verification of high temperature gas ejector system[J]. Journal of Experiments in Fluid Mechanics, 2020, 34(3): 111-116. DOI: 10.11729/syltlx20190068

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Docking test verification of high temperature gas ejector system

ZHAO Fang^{1, 2,},
REN Zebin^{1, 2},
WANG Haifeng^{1, 2, ,},
LI Xianfeng²,
SHI Yu^{1, 2},
GUO Longde²

1.
State Key Laboratory of Aerodynamics, China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China
2.
Facility Design and instrumentation institute, China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China

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Received Date: May 18, 2019
Revised Date: August 25, 2019

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Abstract

Abstract

The ejector system is the key component of the chemical laser exhaust system. In order to improve the ejection efficiency of the exhaust system and meet requirements of miniaturization and economy, an ejection gas source scheme based on the gas generator to generate high temperature gas is proposed. A test stand of the ejection system composed of a gas generator based on structure of aero-engine mono-injector combustor and the two-stage supersonic ejector is established. An independent thermal test of the gas generator has been carried out and a docking test with the ejector has been successfully realized. Results show that ignition of the gas generator is reliable and the operation is stable; the ejector starts quickly and works smoothly under the action of high temperature gas injection, and performance indexes are better than design points:the ejector-gas temperature variation within a certain range does not affect the ejector performance. Research results expand the application of the gas generator, and at the same time, provide a powerful reference for the design and selection of ejector system solutions in this field.
- ejector system,
- chemical laser,
- gas generator,
- supersonic ejector,
- docking test

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