计算物理 ›› 2012, Vol. 29 ›› Issue (1): 1-9.
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赵强1, 袁光伟2, 董志伟1
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ZHAO Qiang1, YUAN Guangwei2, DONG Zhiwei1
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摘要: 研究扭曲网格上扩散方程的九点格式.以经典的九点格式为基础,在通量连续条件下,构造出节点未知量一种新的计算方法,进而得到所希望的格式.分析及数值实验表明,在扭曲网格上,该格式对具有连续或间断扩散系数的问题能够保持较高的精度.
关键词: 节点重构, 扩散方程, 有限体积格式
Abstract: Nine.point scheme for diffusion equation on distorted quadrilateral is discussed.Based on a classical nine。point scheme, and with continuity of diffusion flux, a formula for designed for computing Vertex unknowns. Numerical experiments show that the scheme is robust,and the accuracy is higher than that of other weighted methods for diffusion problem with continuous or discontinuous coefficient on distorted meshes.
Key words: vertex reconstruction, diffusion equation, finite volume scheme
中图分类号:
O24
赵强, 袁光伟, 董志伟. 基于节点重构的扩散方程有限体积格式[J]. 计算物理, 2012, 29(1): 1-9.
ZHAO Qiang, YUAN Guangwei, DONG Zhiwei. Finite Volume Scheme for Diffusion Equation with Vertex Reconstruction[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2012, 29(1): 1-9.
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