Title

带压力梯度的非平行流边界层稳定性研究

Translated Titles

Analysis of Boundary Layer Stability for Non-Parallic Flow with Pressure Gradient

Authors

郭琳琳(Lin-Lin Guo);唐登斌(Deng-Bin Tang);王伟志(Wei-Zhi Wang)

Key Words

压力梯度 ; 非平行性 ; 抛物化稳定性方程 ; 局部法 ; pressure gradient ; non-parallelism ; parabolic stability equation PSE ; local method

PublicationName

南京航空航天大學學報

Volume or Term/Year and Month of Publication

37卷2期(2005 / 04 / 01)

Page #

169 - 173

Content Language

簡體中文

Chinese Abstract

发展高精度的高阶谱方法,通过抛物化稳定性方程及其局部法,研究在压力梯度作用下的非平行流边界层稳定性问题。与经典的平行流边界层稳定性结果相比,显示了在某些条件下非平行性对稳定性的关键作用。提出了压力梯度对临界雷诺数的影响研究,探讨了不同压力场对流动稳定性作用的规律性。

English Abstract

The spectral collocation method for the high accuracy with the high order is developed. The problems of non-parallel boundary layer stability under a function of the pressure gradient are studied by the parabolic stability equation (PSE) and the local method. The key function of the non-parallelism under some conditions is shown by the comparison of the results from the classical stability problem of the parallel flow. The effect of the pressure gradient on critical Reynolds number is also displayed and the influence rule of the different pressure fields on the flow stability is exploited.

Topic Category 基礎與應用科學 > 基礎與應用科學綜合
工程學 > 工程學綜合