使用局部Steger-Warming通量分裂方法,利用NND有限差分格式求解守恒型流体力学方程组,实现对Kelvin-Helmholtz不稳定性的数值模拟.数值模拟给出的线性增长率与线性稳定性分析给出的结果相符合,得到锐利的界面变形图像.
Kelvin-Helmholtz instability is carried out with local Steger-Warming flux splitting method and NND scheme for hydrodynamic equations. Linear growth rates agree well with linear stability analysis. The method provides clear interface deformation images.