|Table of Contents|

Influence of RBCC rocket on resisting backpressure ability of straight-expanded flowpath(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2015年06期
Page:
7-10
Research Field:
研究与设计
Publishing date:

Info

Title:
Influence of RBCC rocket on resisting backpressure ability of straight-expanded flowpath
Author(s):
LIU Xiaowei;  LIU Hao;  ZHANG Mengzheng
Xi’an Aerospace Propulsion Institute, Xi’an 710100, China
Keywords:
RBCC engine;  matching of inlet and combustor;  ability of resisting backpressure;  numerical simulation
PACS:
V434-34
DOI:
-
Abstract:
It is an important direction of RBCC study to improve the straight-expanded flowpath resisting backpressure ability and the matching of inlet and combustor. The influence of RBCC rocket at the isolation exit on the resisting backpressure ability of straight-expanded flowpath is investigated. The results of numerical simulation of two different rocket layout modes (the axes rocket and the sidewall rocket) are contrasted. The investigation shows that the jet flow of RBCC rocket can improve the resisting backpressure ability of straight-expanded flowpath, and the upper limit of resisting backpressure increases with the increase of rocket combustor pressure, which conforms with linear relation. The resisting backpressure ability of the sidewall rocket is slightly higher than that of the axes rocket. The backpressure shock wave exists in a normal shock wave form, if the combustor pressure and the backpressure of the sidewall rocket are high.

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Last Update: 1900-01-01