|Table of Contents|

Application on combustion chamber of porous medium cooling channel(PDF)

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

Issue:
2020年04期
Page:
54-59
Research Field:
研究与设计
Publishing date:

Info

Title:
Application on combustion chamber of porous medium cooling channel
Author(s):
LIU Zhanyi; HU Jinhua; ZHANG Weijing; YANG Jianwen; LIU Jiwu; SHI Xiaobo
(Science and Technology on Liquid Rocket Engine Laboratory,Xi’an Aerospace Propulsion Institute,Xi’an 710100,China)
Keywords:
porous medium;  cooling channel;  combustion chamber;  heat transfer enhancement
PACS:
V434.3
DOI:
-
Abstract:
To investigate the adaptability of porous medium cooling channel in liquid rocket engine combustor,porous medium was manufactured by the method of metal powder sintering. Test devices about flow resistance and heat transfer characteristics of porous medium channel were designed and built,meanwhile,heat transfer prediction model of combustion chamber adopted porous medium channel was established and porous medium channels with different structural parameters were involved in this paper. Results from the research are as follows. The flow resistance and heat transfer intensity of porous medium channel decrease as the void fraction of porous medium increases. The prediction based on heat transfer model has some deviations with the experimental results. The maximum deviation is about 25%. Compared with milled channel,better thermal protection effect could be obtained with porous medium cooling channel in combustion chamber.

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Last Update: 2020-07-30