| 引用本文: | 刘伟强,姜春林,周进,等.气氧/煤油发动机水冷推力室壁热分析.[J].国防科技大学学报,1999,21(2):13-16.[点击复制] |
| Liu Weiqiang,Jiang Chunlin,Zhou Jin,et al.Thermal Analysis of GO2/Kerosene Rocket Thrust Chamber Wall[J].Journal of National University of Defense Technology,1999,21(2):13-16[点击复制] |
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| 气氧/煤油发动机水冷推力室壁热分析 |
| 刘伟强, 姜春林, 周进, 王振国, 陈启智 |
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(国防科技大学 航天技术系 湖南 长沙 410073)
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| 摘要: |
| 针对气氧/煤油地面试验发动机的热防护问题, 采用非定常三维壁温分布模型为主体的分析模型, 对槽道式水冷推力室壁温特性进行了计算分析。燃气流与冷却水流采用一维流动模型计算。应用有限差分方法确定了燃气与室壁的换热热流、推力室壁温分布, 给出了壁温随时间变化的规律, 讨论了冷却水流量对壁温的影响。 |
| 关键词: 液体火箭发动机, 冷却, 数值仿真 |
| DOI： |
| 投稿日期：1998-06-19 |
| 基金项目: |
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| Thermal Analysis of GO2/Kerosene Rocket Thrust Chamber Wall |
| Liu Weiqiang, Jiang Chunlin, Zhou Jin, Wang Zhenguo, Chen Qizhi |
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(Department of Aerospace Technology, NUDT, Changsha, 410073)
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| Abstract: |
| Unsteady three-dimensional thermal analysis model of the chamber wall is used to account for the thermal protection of GO2/kerosene ground test engine and numerical calculation is performed on its water cooling channel wall. The numerical model treats the hot gas flow and coolant flow as one dimensional. The hot gas side heat transfer and the temperature profile in the wall are obtained by finite difference method. The history of the temperature profile is also predicted by the analysis. The effect of the coolant flow rate on the temperature profile is also discussed. |
| Keywords: liquid propellant rocket engine, cooling, numerical simulation |
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