| 引用本文: | 戎宜生,陈伟芳,石于中,等.过渡流区圆柱体驻点热流的工程计算.[J].国防科技大学学报,2008,30(5):6-9.[点击复制] |
| RONG Yisheng,CHEN Weifang,SHI Yuzhong,et al.Engineering Calculation of Heat Flux at the Stagnation Point of Cylinder in Transitional Region[J].Journal of National University of Defense Technology,2008,30(5):6-9[点击复制] |
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| 过渡流区圆柱体驻点热流的工程计算 |
| 戎宜生1, 陈伟芳2, 石于中1, 刘伟强1 |
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(1.国防科技大学 航天与材料工程学院，湖南 长沙 410073;2.浙江大学 航空航天学院，浙江 杭州 310027)
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| 摘要: |
| 以流动分区的界限为Knudsen数的变化区间，使用线性插值和调节参数进行校正的方法，提出一种计算过渡流区热流的桥函数形式，并且确定了端面迎风的圆柱体的调节参数。使用DSMC方法对计算结果进行验证并与其他形式的桥函数进行比较。结果表明该桥函数在马赫数大于10的情况下，能比较准确地计算驻点热流的值，可以为飞行器初步设计提供一定的参考依据。 |
| 关键词: 过渡流区 驻点 桥函数 DSMC方法 |
| DOI： |
| 投稿日期：2008-01-20 |
| 基金项目:国家部委基金资助项目 |
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| Engineering Calculation of Heat Flux at the Stagnation Point of Cylinder in Transitional Region |
| RONG Yisheng1, CHEN Weifang2, SHI Yuzhong1, LIU Weiqiang1 |
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(1.College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China;2.College of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310027，China)
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| Abstract: |
| By the use of linear interpolation and accommodate parameter, a heat transfer bridging relation in transitional region is proposed in this paper, aiming to fix the accommodate parameter for cylinder whose edge surface is windward. The results of the bridging relation were validated by using DSMC method and compared with the results of other bridging relations. The validation shows that the bridging relation can be used to calculate the heat flux at the stagnation point with Mach number larger than 10. |
| Keywords: transitional region stagnation point bridging relation DSMC method |
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