Symmetry breaking and the spatial oscillations in finite difference solutions for the inviscid Burgers equation u-sing the Lax-Wendroff scheme are explored. 指出了Lax-wendroff格式数值求解无粘Burgers方程的问题出现空间振荡与对称破缺之间的内在联系。
This view paper is devoted to the difference methods for conservation law, including conservative scheme, monotone schemes Lax scheme, Lax-Wendroff scheme Engquist-Osher scheme, hybrid switch method and prediction-correction method. 本文介绍守恒型双曲型方程组的各种差分方法,例如守恒型格式和单调格式,Lax格式,Lax-Wendroff型格式,和Engquist-Osher格式,混合开关方法和预估校正格式。
To resolve the 2D Navier-Stokes equation, we use two numerical methods which are composite finite difference method and composite finite volume method. They are both formed by global composition of Lax-Wendroff ( LW) scheme and Lax-Friedrichs ( LF) scheme. 在对浅水波方程的求解中,我们借用计算流体力学中的数值分析工具,即基于Lax-Wendroff(LW)格式和Lax-Friedrichs(LF)格式的复合型差分方法和有限体积方法。
The two-step Lax-Wendroff scheme is applied to Eulerian cells of ( r-z) plane in axial deuices. Applied special treatments are as follows. 在(r,z)平面的欧拉网格上使用了双步长Lax-Wendroff格式的编码。
Difference method for probability density evolution equation of the stochastic structural response was studied. The computational performances of one-sided difference scheme and Lax-Wendroff scheme were discussed, respectively. 本文研究了求解随机结构静力反应概率密度演化方程的差分方法,分别探讨了单边差分格式和Lax-Wendroff格式的计算性态。