矢通量分裂隐式三维NND有限体积方法及应用

THREE DIMENSIONAL IMPLICIT NND GFINITE VOLUME SCHEME AND ITS APPLICATIONS

建立了三维矢通量分裂隐式 NND有限体积格式 ,对三维高超声速绕流及激波绕射问题数值模拟试验表明 :文中构造的格式仍保持 NND优点 ,具有较高的激波分辨率 ;有良好的计算稳定性 ,节省计算时间 .

Three dimensional vector flux split, implicit NND finite volume scheme is constructed. Numerical results on three di mensional hypersonic flow around body and shockwave diffraction show that the nu merical scheme has the characteristics of NND schemes, high resolution on shock wave, a good stability on computation, and saves the CPU time.