基于传输方程空化模型的定常自然空化流场数值计算

Numerical computation of steady natural cavitating flow based on transport equation cavitaion model

采用基于传输方程的空化模型,应用自主开发的软件对水翼和水下回转体定常自然空化流场进行了数值计算。采用基于压力修正和多块结构化网格的有限体积方法数值求解Favre平均的NS方程,运用k-ε两方程加壁函数的湍流模式封闭雷诺应力。计算结果与已有实验结果符合较好。

Based on transport equation cavitation model, the natural cavitating flows of hydrofoil and underwater body of revolution are computed numerically. A Favre averaged Navier-Stokes equation solver is developed with pressure based SIMPLE algorithms and multi-block structured grid finite volume method. Standard k-ε turbulence model with wall function method is used. The calculated results are in good agreement with those of available experiments.