基于LDV测量的物面压力计算方法

A Computational Method of the Wall Pressure Basing on LDV Data

本文提出了一种基于LDV测得物体绕流场区域边界的流动信息 ,在成熟CFD程序中用第一类边界条件给定 ,通过对RANS方程的直接求解得出精细的物面压力分布的新方法。针对NACA0015带8度攻角的二维对称机翼湍流绕流场 ,进行了物面压力分布预报 ,并与水筒同步试验测出的物面压力作了对比 ,两者吻合情况良好 ,验证了方法的有效性。

A new method of prediction of the wall pressure was presented in this paper. By a combined technique between LDV data and CFD solver,the wall pressure was computed by RANS equation with LDV data as boundary conditions.The distribution of wall pressure of a two-dimensional NACA0015 foil with 8 degrees attack angle was computed as an example.Results by the present method are well consistent with the experiment data in water tunnel.