抛物化稳定性方程在可压缩边界层中应用的检验

张永明; 周恒

抛物化稳定性方程在可压缩边界层中应用的检验

张永明¹,
周恒^1,2

1.
天津大学力学系,天津 300072;2.南开大学天津大学刘徽应用数学中心,天津 300072

基金项目: 国家自然科学基金(重点)资助项目(10632050);南开大学天津大学刘徽应用数学中心资助项目

详细信息

作者简介:
张永明(1979- ),男,云南人,博士生(Tel:+86-22-27403374;E-mail:yingmzh@yahoo.com);周恒(联系人.Tel:+86-22-27890533;Fax:+86-22-27407025;E-mail:hzhou1@tju.edu.cn).

中图分类号: O357.41
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出版历程
- 收稿日期: 2006-05-10
- 修回日期: 2007-06-21
- 刊出日期: 2007-08-15

Verification of the Parabolized Stability Equationsfor Its Application to Compressible Boundary Layers

ZHANG Yong-ming¹,
ZHOU Heng^1,2

1.
Department of Mechanics, Tianjin University, Tianjin 300072, P. R. China;

摘要

摘要: 用抛物化稳定性方程（PSE），研究了可压缩边界层中扰动的演化，并与由直接数值模拟（DNS）所得进行比较．目的在检验PSE方法用于研究可压缩边界层中扰动演化的可靠性．结果显示,无论是亚音速还是超音速边界层，由PSE方法和由DNS方法所得结果都基本一致,而温度比速度吻合得更好．对超音速边界层，还计算了小扰动的中性曲线．与线性稳定性理论（LST）的结果相比，二者的关系和不可压边界层的情况相似．
- 抛物化稳定性方程 /
- 直接数值模拟 /
- 线性稳定性理论
Abstract: Parabolized stability equations(PSE)were used to study the evolution of disturbances in compressible boundary layers.The results were compared with those obtained by direct numerical simulations(DNs),to check if the results from PSE method were reliable or not.The results of comparison showed that no matter for subsonic or supersonic boundary layers,results from both the PSE method and DNS method agreed with each other reasonably well.And the agreement between temperatures is better than those between velocities.In addition,linear PSE was used to calculate the neutral curve for small amplitude disturbances in a supersonic boundary layer.Compared with those obtained by linear stability theory(LST),the situation is similar to those for incompressible boundary layer.
- parabolized stability equation /
- direct numerical simulation /
- linear stability theory

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参考文献(17)

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抛物化稳定性方程在可压缩边界层中应用的检验

作者简介:
张永明(1979- ),男,云南人,博士生(Tel:+86-22-27403374;E-mail:yingmzh@yahoo.com);周恒(联系人.Tel:+86-22-27890533;Fax:+86-22-27407025;E-mail:hzhou1@tju.edu.cn).

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Verification of the Parabolized Stability Equationsfor Its Application to Compressible Boundary Layers

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抛物化稳定性方程在可压缩边界层中应用的检验

作者简介: 张永明(1979- ),男,云南人,博士生(Tel:+86-22-27403374;E-mail:yingmzh@yahoo.com);周恒(联系人.Tel:+86-22-27890533;Fax:+86-22-27407025;E-mail:hzhou1@tju.edu.cn).

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出版历程

Verification of the Parabolized Stability Equationsfor Its Application to Compressible Boundary Layers

计量

出版历程

目录

作者简介:
张永明(1979- ),男,云南人,博士生(Tel:+86-22-27403374;E-mail:yingmzh@yahoo.com);周恒(联系人.Tel:+86-22-27890533;Fax:+86-22-27407025;E-mail:hzhou1@tju.edu.cn).