摘要
用基于一般有限差分方法迎风格式求解土壤水盐对流占优扩散问题,会出现较大的数值扩散或者数值振荡现象。该文采用有限体积数值计算方法,将QUICK格式引入上述问题的求解过程中。数值结果表明,该方法可以有效的求解对流占优扩散问题,为土壤水盐运移问题求解提供理论基础。
The upwind scheme leads to unstable numerical results in convection dominated transport problems. This paper uses QUICK scheme in finite volume method to discuses how to get above problems. The value result indicated that this method results are presented to illustrate the discussion .It would be provided the theory bases in the condition of one-dimensional problem of vertical transfer between soil water and salt.
出处
《科技信息》
2007年第16期38-38,44,共2页
Science & Technology Information
