|Table of Contents|

Cold flow test of outflow influence on vehicle with aerospike nozzle(PDF)

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

Issue:
2015年03期
Page:
46-51
Research Field:
研究与设计
Publishing date:

Info

Title:
Cold flow test of outflow influence on vehicle with aerospike nozzle
Author(s):
ZHANG Xiao-guang1;  CHENG Cheng2;  LIU Yu3
1. Xi’an Aerospace Propulsion Institute, Xi’an 710100, China; 2. AVIC Commercial Aircraft Engine Co., Ltd., Shanghai 201108, China; 3. Beijing Univ. of Aeronautics and Astronautics, Beijing 100191, China
Keywords:
aerospike nozzlelift bodyoutflow interferencewind tunnelcold flow test
PACS:
V434-34
DOI:
-
Abstract:
Cold flow tests on effects of outflow on flow field and performance of vehicle with aerospike nozzle during flight with four typical Mach numbers are presented in this paper. The model for cold flow test is composed of a truncated linear plug nozzle and a lift body. In the tests, the nozzle flow field structure was displayed with schlieren display technology, and the axial and lift forces of the model were measured under different conditions. The results show that the existence of outflow leads to an increase in nozzle jet expansion degree and lateral flow intensity, and the thrust loss (includes over expansion loss and lateral flow loss) of aerospike nozzle, caused by outflow, is between 4.7% and 9.6% , in which the over

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