An efficient and accurate reconstruction algorithm for the formulation of cell-centered diffusion schemes

An efficient and accurate reconstruction algorithm for the formulation of cell-centered diffusion schemes
复制标题

用于制定细胞中心扩散方案的高效且准确的重建算法

DOI:
10.1016/j.jcp.2012.06.019
复制
发表时间:
2012-08
影响因子:
4.1
通讯作者:
Guangwei Yuan
Guangwei Yuan
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Lina Chang;Guangwei Yuan

文献摘要

参考文献

被引文献

相似文献

提出了一种新的在变形网格上构造单元中心扩散格式的重建算法。该算法的主要特点是将边缘未知量定义在一定的平衡点上,平衡点的位置取决于扩散系数和网格单元的偏斜度,从而得到两点重建模板。在实现新的梯度近似算法的基础上,我们推广了Traoré等人[P. Traoré,Y.阿希波角Louste,一个强大的和有效的有限体积法离散扩散通量的极端倾斜网格在复杂的几何形状,J。Phys.228(2009)5148-5159],以处理具有不连续系数的扩散问题。数值结果验证了扩展格式的精度和效率。
A new reconstruction algorithm is proposed for constructing cell-centered diffusion schemes on distorted meshes. Its main feature is that edge unknowns are defined at certain balance points, the locations of which depend on the diffusion coefficient and the skewness of grid cells, so as to obtain a two-point reconstruction stencil. Implementing the new algorithm for the approximation of gradients, we extend the IDC (improved deferred correction) scheme, which was proposed by Traoré et al. [P. Traoré, Y. Ahipo, C. Louste, A robust and efficient finite volume scheme for the discretization of diffusive flux on extremely skewed meshes in complex geometries, J. Comput. Phys. 228 (2009) 5148–5159], to handle diffusion problems with discontinuous coefficients. Numerical results demonstrate the accuracy and efficiency of the extended scheme.
DOI: 10.1137/0913035
发表时间: 1992-03-01
期刊: SIAM JOURNAL ON SCIENTIFIC AND STATISTICAL COMPUTING
影响因子: --
作者:
VANDERVORST, HA
通讯作者: VANDERVORST, HA
DOI: 10.1016/j.jcp.2010.01.007
发表时间: 2010-05
影响因子: 4.1
作者:
Wu, Jiming;Yuan, Guangwei;Gao, Zhiming;Dai, Zihuan
通讯作者: Dai, Zihuan
DOI: --
发表时间: 1994
期刊: --
影响因子: --
作者:
S. Muzaferija
通讯作者: S. Muzaferija
DOI: 10.1016/0045-7930(74)90014-0
发表时间: 1974-08
期刊: Computers & Fluids
影响因子: 2.8
作者:
P. Khosla;S. Rubin
通讯作者: P. Khosla;S. Rubin
DOI: 10.1007/s10596-005-1815-9
发表时间: 2004-12
影响因子: 2.5
作者:
R. A. Klausen;T. Russell
通讯作者: R. A. Klausen;T. Russell