湍流两相燃烧不稳定性分析

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1998, Vol. 19 ›› Issue (1): 13-17.

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TURBULENCE TWO PHASE COMBUSTION INSTABILITY ANALYSIS

Zhao Wentao¹, Zhou Jin¹, Nie Wansheng², Zhuang Fengchen²

1. Department of Astronautic Technology,National University of Defence Technology,Changsha, 410073;2. Institute of Command Technology COSTIND, Beijing, 101407

Received:1997-01-23 Revised:1997-09-11 Online:1998-02-25 Published:1998-02-25

Abstract

Abstract:

Turbulence two phase flow and combustion process in a liquid rocket engine combustor are analyzed with numerical method, and combustion instability is also studied. The gas controlling equations are described under the Euler coordinate.The liquid phase controlling equations are described under the Lagrangian coordinate.The changing pattern of the two phase mixed gas and spray from the chamber head to throat is observed: when high frequency combustion instability occurs, the quantities of mixed gas and spray in the controlling volume will vibrate having the same frequency but half cycle difference.

Key words: combustio n instability, spr ay combustion, liquid r ocket eng ine

CLC Number:

V231.3

Zhao Wentao;Zhou Jin;Nie Wansheng;Zhuang Fengchen. TURBULENCE TWO PHASE COMBUSTION INSTABILITY ANALYSIS[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1998, 19(1): 13-17.

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TURBULENCE TWO PHASE COMBUSTION INSTABILITY ANALYSIS

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