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[1]黄春桃,孙 冰.层板发汗冷却推力室传热分析[J].火箭推进,2011,37(01):17-21.
　HUANG Chun-tao,SUN Bing.Heat transfer analysis of platelet transpiration cooling thrust chamber[J].Journal of Rocket Propulsion,2011,37(01):17-21.
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层板发汗冷却推力室传热分析

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V] 卷: 37 期数: 2011年01期 页码: 17-21 栏目: 研究与设计 出版日期: 2011-02-15
Title:
Heat transfer analysis of platelet transpiration cooling thrust chamber
文章编号:
1672-9374(2011)01-0017-06
作者:
黄春桃; 孙 冰
北京航空航天大学 宇航学院，北京 100191
Author(s):
HUANG Chun-tao;  SUN Bing
School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
关键词:
层板推力室; 发汗冷却; 耦合传热; 数值模拟
Keywords:
platelet thrust chamber;  transpiration cooling;  coupled heat transfer
分类号:
V434-34
文献标志码:
A
摘要:
对于采用层板发汗冷却的推力室，为了最大限度地减少冷却剂流量，理想情况是，应根据不同轴向位置的受热情况来分配冷却剂流量，以使各处的壁面温度都控制在材料的许用温度内。本文运用有限体积法，对层板发汗冷却推力室内的燃气流动和壁面内的传热进行了数值模拟，同时通过调节冷却剂吹风比，使各处的壁面温度都控制在材料的许用温度之内。为综合考虑发汗冷却效果，将发汗冷却的两个方面，即推力室壁面内的传热和发汗流对传热的阻隔进行了耦合求解。数值研究结果表明：推力室内壁温度越低，所需的冷却剂的吹风比越大。
Abstract:
For a platelet transpiration cooled thrust chamber, in order to achieve the maximum reduction of the coolant flow rate, the ideal means is to distribute the coolant according to different axial heating positions to keep overall wall temperature under material permissible limit. The numerical simulation for the internal gas flow and wall heat transfer in a platelet transpiration cooled thrust chamber were performed by using finite volume method. The two aspects of transpiration cooling, the heat transfer in the wall and the obstructing effect of blowing ratio on the surface temperature, were solved in a coupled solution to consider the transpiration cooling effect synthetically. The numerical results show that blowing ratio increases with the decrease of the wall temperature.

相似文献/References:

[1]高翔宇,孙纪国,田 原.推力室多孔面板氢发汗冷却传热分析[J].火箭推进,2012,38(05):13.
　GAO Xiang-yu,SUN Ji-guo,TIAN Yuan.Numerical analysis of H2 transpiration cooling for thrust chamber porous plate[J].Journal of Rocket Propulsion,2012,38(01):13.
[2]高翔宇,孙纪国.推力室多孔面板发汗冷却试验研究[J].火箭推进,2011,37(05):9.
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[3]张峰,刘伟强.层板发汗冷却在液体火箭发动机中的应用与发展综述[J].火箭推进,2007,33(06):43.
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备注/Memo

收稿日期：2010-10-16；修回日期：2010-11-20
作者简介： 黄春桃（1985—），女，硕士研究生，研究领域为火箭发动机热防护

更新日期/Last Update: 1900-01-01