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一种中心型有限体积孔隙–裂隙渗流求解方法及其OpenMP并行化
Alternative TitleA CELL-CENTERED FINITE VOLUME METHOD FOR FLUID FLOW IN FRACTURED POROUS MEDIA AND ITS PARALLELIZATION WITH OPENMP
王理想; 李世海; 马照松; 冯春
Source Publication岩石力学与工程学报
2015-02-11
Volume34Issue:5Pages:865-875
ISSN1000-6915
Abstract为高效求解单相孔隙–裂隙渗流问题,发展一种基于任意网格的三维中心型有限体积渗流求解算法,并对其进行OpenMP并行化。该算法将压力置于单元中心处;使用串联弹簧模型在空间域离散;使用显式差分格式在时间域离散;使用动态松弛求解技术,逐个单元求解。算例研究表明,该算法与有限元相比具有类似的精度,但求解效率更高。OpenMP并行化使得该算法运算速度在CPUi7–3770上可提高至4.0倍,在CPUi7–4770上可提高至4.2倍;两台机器上的并行效率均高达50%以上。
Other AbstractAn efficient three-dimensional cell-centered finite volume method(ccFVM) on arbitrary grids was developed for single-phase fluid flow in fractured porous media. The method was parallelized with OpenMP. With that the pressure node was set at the center of the cell,the model of spring-in-series was employed for spatial discretization and the explicit difference scheme for temporal discretization. The dynamic relaxation technique was used for the element-by-element iteration. The numerical tests indicated that the ccFVM was as accurate as FEM, but more efficient. The parallel procedure obtained a speedup of 4.0 on the CPU i7–3770 and a speedup of 4.2 on the CPU i7–4770. High parallel efficiency of over 50% was achieved on both machines.
Keyword计算数学 三维中心型有限体积法 单相孔隙–裂隙耦合渗流 动态松弛技术 Openmp并行 离散裂隙网络
DOI10.13722/j.cnki.jrme.2014.1049
Indexed ByEI ; CSCD
Language中文
Funding Organization国家重点基础研究发展规划(973)项目(2010CB731506) ; 中国科学院战略性先导科技专项(XDB10030303) ; 国家自然科学基金青年基金项目(11002146)
CSCD IDCSCD:5422778
DepartmentLMFS工程地质体力学(LEM)
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58290
Collection流固耦合系统力学重点实验室
Recommended Citation
GB/T 7714
王理想,李世海,马照松,等. 一种中心型有限体积孔隙–裂隙渗流求解方法及其OpenMP并行化[J]. 岩石力学与工程学报,2015,34(5):865-875.
APA 王理想,李世海,马照松,&冯春.(2015).一种中心型有限体积孔隙–裂隙渗流求解方法及其OpenMP并行化.岩石力学与工程学报,34(5),865-875.
MLA 王理想,et al."一种中心型有限体积孔隙–裂隙渗流求解方法及其OpenMP并行化".岩石力学与工程学报 34.5(2015):865-875.
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