|Table of Contents|

Experimental study on cooling characteristics of pintle thruster(PDF)

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

Issue:
2020年01期
Page:
13-19
Research Field:
研究与设计
Publishing date:

Info

Title:
Experimental study on cooling characteristics of pintle thruster
Author(s):
LIU Changbo;  LIN Ge;  SONG Daliang;  LING Qiancheng;  ZHANG Rongjun
(Xi’an Aerospace Propulsion Institute, Xi’an 710100, China)
Keywords:
pintle;  thruster;  cooling characteristics;  thermal protection
PACS:
V434.24文献标识码:A 文章编号:1672-9374(2020)01-0013-07
DOI:
-
Abstract:
Pintle engine has a series of advantages, such as simply thrust adjustment, good acoustic combustion stability, low cost, etc.However,the cooling characteristics are still unclear at present, and the ablating problem due to poor cooling structure of the thruster has occurred many times in the pintle engine development process.In this paper, a pintle thruster article was used to study the cooling characteristics of its body.The results show that, a)the temperature of the thruster pre-cylinder is lower and the usual steel can endure; b)the maximum inner wall temperature of the aft cylinder will reach about 1 650 ℃, and effective thermal protection measures must be taken since there are obvious ablation phenomena locally; c)the cooling characteristics are little affected by the downstream film flow rate.The research results of this paper are useful to optimize the thermal protection of the pintle thruster.

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Last Update: 2020-02-25