发散冷却控制烧蚀过程的数值研究

谢远远; 王建华

发散冷却控制烧蚀过程的数值研究

中国科学技术大学热科学与能源工程系, 合肥 230027

基金项目: 国家自然科学基金重大研究计划(1077217590305006)

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出版历程
- 收稿日期: 2007-08-03
- 修回日期: 2008-03-04
- 刊出日期: 2008-08-28

Numerical investigation of control ablation process with transpiration cooling

Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230027, China

摘要

摘要: 用数值方法模拟了发散冷却控制结构烧蚀的瞬态过程,同时考虑了线烧蚀和体积烧蚀两种现象对多孔介质骨架高温表面的质量损失和冷却效果的影响,并讨论了高温主流携带的热流强度、冷却介质注入的初始速度和温度、及多孔材料骨架初始温度在控制烧蚀过程中的作用.
- 线烧蚀 /
- 体积烧蚀 /
- 发散冷却 /
- 多孔介质
Abstract: A numerical method was developed to simulate the transient control ablation process by transpiration cooling.The influence of surface ablation and charring of thermal protective structure on cooling performance and the mass losses due to the ablation and charring was considered.In order to exactly predict the performance of the control ablation and cooling process,the influences of heat flux intensity,coolant injection velocity,initial temperatures of porous matrix and coolant on the cooling effect were discussed.
- surface ablation /
- charring /
- transpiration cooling /
- porous matrix

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参考文献(15)

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