高超声速飞行器前驻点热流数值模拟的物理准则研究

李邦明; 鲍麟; 童秉纲

doi:10.3879/j.issn.1000-0887.2010.07.005

高超声速飞行器前驻点热流数值模拟的物理准则研究

doi: 10.3879/j.issn.1000-0887.2010.07.005

中国科学院研究生院, 北京 100049

基金项目: 国家自然科学基金资助项目(90716011;10902119)

详细信息

作者简介:
李邦明(1986- ),男,安徽怀宁人,博士生(E-mail:lbm@mail.ustc.edu.cn);童秉纲(1927- ),男,江苏张家港人,博士生导师(联系人.).

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出版历程
- 收稿日期: 1900-01-01
- 修回日期: 2010-05-21
- 刊出日期: 2010-07-15

Physical Criterion Study on Forward Stagnation Point Heat Flux CFD Computations at Hypersonic Speeds

Graduate University, CAS, Beijing 100049, P. R. China

摘要

摘要: 通过建立高超声速飞行器前驻点处沿驻点线的准一维流简化模型，再将头激波后流场分为无粘区和近壁粘性区，然后从N-S方程组出发，利用流场对称性和量级分析方法，最终推导出驻点邻域简化控制方程组，并证明了其流动具有边界层型特征．在此基础上，根据该控制方程组，给出了计算结果应满足的壁面驻点以及沿驻点线的相容关系，成为热流CFD计算准确与否应遵循的物理准则．最后通过算例验证了物理准则作为热流CFD计算可靠性判据的正确性．
- 准一维流 /
- 驻点热流 /
- 高超声速 /
- 物理准则
Abstract: In order to evaluate the uncertainties in CFD computations of the stagnation point heat flux, a physical criterion was developed. Based on a quasi-one-dmiensional hypothesis along stagnation line, a new stagnation flow model was applied which contributes to obtain the governing equations of the flow near the stagnation point at hypersonic speeds. From the above equations, a set of compatibility relations was given at the stagnation point and along the stagnation line, which consist of the physical criterion for checking the accuracy in stagnation point heat flux computations. Eventually, verification of the criterion was made among various numerical results.
- quasi-one-dmiensional hypothesis /
- stagnation point heat flux /
- hypersonic flow /
- physical criterion

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参考文献(12)

[1]	Klopfer G H, Yee H C. Viscous hypersonic shock on shock interaction on blunt cowl lips[R]. AIAA paper， 1988-0233, 1988.
[2]	Hoffmann K A, Siddiquim S, Chiang S T. Difficulties associated with the heat flux computations of high speed flows by the Navier-Stokes equations[R]. AIAA paper, 1991-0467, 1991.
[3]	Hoffmann K A, Papadakist M, Suzen Y B. Aeroheating and skin friction computations for a blunt body at high speeds[R]. AIAA paper, 1994-0455, 1994.
[4]	Lee J H, Rho O H. Accuracy of AUSM + scheme in hypersonic blunt body flow calculation[R]. AIAA paper, 1998-1538,1998.
[5]	Zoby E V, Thompson R A, Wurster K E. Aeroheating design issues for reusable launch vehicles—a perspective[R]. AIAA paper, 2004-2535, 2004.
[6]	Lees L. Laminar heat transfer over blunt nosed bodies at hypersonic flight speeds[J]. Jet Propusion, 1957, 26(4):259-269.
[7]	Fay J A, Riddell F R. Theory of stagnation point heat transfer in dissociated air[J]. Journal Aeronautical Science, 1958, 25(2): 73-85.
[8]	Van Dyke M. Higher approximations in boundary-layer theory—part 1： general analysis[J]. J Fluid Mech, 1962, 14(2): 161-177. doi: 10.1017/S0022112062001147
[9]	Belouaggadia N, Oliver H, Brun R. Numerical and theoretical study of the shock stand-off distance in non-equilibrium flows[J]. J Fluid Mech, 2008, 607(1): 167-197.
[10]	Batchelor G K. An Introduction to Fluid Mechanics[M]. Beijing: China Machine Press, 2004.
[11]	李家春, 周显初. 数学物理中的渐近方法[M]. 北京:科学出版社, 2002.
[12]	阎超, 禹建军, 李军哲. 热流CFD计算中网格和格式效应若干问题研究[J].空气动力学报, 2006, 24(1):125-130.

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高超声速飞行器前驻点热流数值模拟的物理准则研究

doi: 10.3879/j.issn.1000-0887.2010.07.005

作者简介:
李邦明(1986- ),男,安徽怀宁人,博士生(E-mail:lbm@mail.ustc.edu.cn);童秉纲(1927- ),男,江苏张家港人,博士生导师(联系人.).

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Physical Criterion Study on Forward Stagnation Point Heat Flux CFD Computations at Hypersonic Speeds

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高超声速飞行器前驻点热流数值模拟的物理准则研究

doi: 10.3879/j.issn.1000-0887.2010.07.005

作者简介: 李邦明(1986- ),男,安徽怀宁人,博士生(E-mail:lbm@mail.ustc.edu.cn);童秉纲(1927- ),男,江苏张家港人,博士生导师(联系人.).

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出版历程

Physical Criterion Study on Forward Stagnation Point Heat Flux CFD Computations at Hypersonic Speeds

计量

出版历程

目录

作者简介:
李邦明(1986- ),男,安徽怀宁人,博士生(E-mail:lbm@mail.ustc.edu.cn);童秉纲(1927- ),男,江苏张家港人,博士生导师(联系人.).