| 无结构网格上解油藏数值模拟方程的区域并行差分格式 |
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| 引用本文： | 高家全,张怀. 无结构网格上解油藏数值模拟方程的区域并行差分格式[J]. 数值计算与计算机应用, 2003, 24(1): 60-67 |
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| 作者姓名： | 高家全 张怀 |
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| 作者单位： | 中国科学院软件所并行研究开发中心 |
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| 摘 要： | 1.导 论 我们知道,结构网格有很多优点,对简单几何区域网格生成是直接的,可利用其顶点间的连结特点发展解算法,算法易于向量化.对复杂的计算区域,特别是油藏数值模拟所要计算的区域,产生适当的(有)结构网格是困难的,因此对网格放弃内在的结构要求,采取了完全无结构网格.由于无结构网格结构复杂,如何在它们上离散油藏数值模拟方程(组)一直是
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| 修稿时间： | 2001-04-24 |
A DOMAIN PARALLEL DIFFERENCE SCHEME FOR RESERVOIR NUMERICAL SIMULATION EQUATIONS ON UNSTRUCTURED GRIDS |
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| Gao Jiaquan Zhang Huai. A DOMAIN PARALLEL DIFFERENCE SCHEME FOR RESERVOIR NUMERICAL SIMULATION EQUATIONS ON UNSTRUCTURED GRIDS[J]. Journal on Numerical Methods and Computer Applications, 2003, 24(1): 60-67 |
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| Authors: | Gao Jiaquan Zhang Huai |
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| Abstract: | How to discretize reservoir numerical simulation equations is always concernedby people. In this paper, taking the parabolic equationas an example, we also study this problem, and constructed a domainparallel difference scheme on unstructured grids, which is based on an implicit scheme inside boundary layers and an explicit scheme on them. In order to reduce the restrictive timestep limits that exists, we give a method of selecting sub-domain boundary nodes, and can prove its stability and convergence. It is obviously that it is advantageous to parallel computing. In the end, its results of numerical experiments are presented. |
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| Keywords: | Reservoir numerical simulation parallel difference scheme implicit-explicit scheme convergence and stability |
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