A Scalable Domain Decomposition Method for Ultra-Parallel Arterial Flow Simulations

作     者：Leopold Grinberg George Em Karniadakis 

作者机构：Division of Applied MathematicsBrown UniversityProvidence 02912USA 

出 版 物：《Communications in Computational Physics》 (计算物理通讯（英文）)

年 卷 期：2008年第4卷第10期

页      面：1151-1169页

核心收录：

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

基　　金：This work was supported by the National Science Foundation CI-TEAM grant.Com-putations were performed on CRAY XT3 of Pittsburgh Supercomputing Center with the help of David O’Neal and on the Ranger supercomputer of Texas Advanced Computing Center with the help of John Cozes 

主　　题：Bioflows spectral elements discontinuous Galerkin parallel computing 

摘      要：Ultra-parallel flow simulations on hundreds of thousands of processors require new multi-level domain decomposition *** we present such a new two-level method that has features both of discontinuous and continuous Galerkin ***,at the coarse level the domain is subdivided into several big patches and within each patch a spectral element discretization(fine level)is *** interface conditions for the Navier-Stokes equations are developed to connect the patches,relaxing the C0 continuity and minimizing data transfer at the patch *** perform several 3D flow simulations of a benchmark problem and of arterial flows to evaluate the performance of the new method and investigate its accuracy.