喷口辐射热泄漏对延伸段壁温分布的影响

推进技术 ›› 1996, Vol. 17 ›› Issue (5): 68-71.

喷口辐射热泄漏对延伸段壁温分布的影响

程惠尔,邓澍

上海交通大学动力机械工程系;上海交通大学动力机械工程系

发布日期:2021-08-15

INFLUENCE OF HEAT RADIATION LEAKAGE AT EXIT ON WALL TEMPERATURE DISTRIBUTION IN EXTENDED SECTION OF NOZZLE

Dept.of power Machinery Engineering, Shanghai Jiaotong Univ.,Shanghai,,200030;Dept.of power Machinery Engineering, Shanghai Jiaotong Univ.,Shanghai,,200030

Published:2021-08-15

摘要/Abstract

摘要： 引入喷口的热辐射泄漏损失，导出辐射冷却推力室壁温的计算方程。分析表明，考虑与不考虑喷口热损失二者相比较，前者壁温约下降７０℃。本结果可为喷管延伸段材料的选取提供更为科学的理论依据。

关键词: 发动机喷管;喷管壁;辐射冷却;壁温;数值分析

Abstract: he equation for calculating wall temperature in thrust chamber has been presented bymeans of introducing heat radiation leakage loss at nozzle exit. It is indicated by analysis that walltemperature of nozzle in the case of consideration of heat loss at exit could decrease approximately70℃ compared with that without this consideration. This result may contribute more scientifictheoretical basis for selection of material to construct extended section of nozzle.

Key words: Engine nozzle;Nozzle wall;Radiant cooling;wall temperature;numerical analysis

程惠尔,邓澍. 喷口辐射热泄漏对延伸段壁温分布的影响[J]. 推进技术, 1996, 17(5): 68-71.