A HIGH-RESOLUTION FINITE-DIFFERENCE SCHEME FOR NONUNIFORM GRIDS

被引:0
作者
LIU, JC
POPE, GA
SEPEHRNOORI, K
机构
关键词
NONUNIFORM GRIDS; HIGHER-ORDER FINITE-DIFFERENCE METHODS; HIGH-RESOLUTION FINITE-DIFFERENCE METHODS; TOTAL-VARIATION-DIMINISHING METHODS;
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A higher-order, high-resolution finite-difference scheme for nonuniform grids is presented. This scheme, derived rigorously form Taylor series expansion at nomuniform gridpoints with a total-variation-diminishing constraint applied, gives better numerical approximations to the analytical solutions compared with schemes that are only first-order when applied to nonuniform grids. The scheme is suitable even for extremely nonuniform grids, which are often required in large-scale simulation problems. A wide range of flexibility in designing nonuniform grids is achieved.
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页码:162 / 172
页数:11
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