考虑横流与旋转对湍流边界层影响的分析

Analysis for Predicting the Influence of Rotational and Cross Flow Terms on Turbulent Boundary Layers

本文分析了在湍流边界层方程中考虑横流以估计近壁面存在横流引起的动量输运和旋转影响。计算二维湍流边界层的Pantakar-Spalding基本方法仍然毫不困难地被使用在这个分析中,以不失计算的简单性。文中算例表明,用本文分析所得的边界层计算结果更符合于实验值。

An analysis model by including cross flow terms in the turbulent boundary layer equation to account for the momentum transport associated with the cross flows on the endwalls and the effects of rotation on boundary layers is presented in this paper. It is not too difficult that the Patankar-Spalding method for computating the boundary layer development is adapted to the present analysis model. The examples show that the proposed model gives better agreement with experimental data.