非结构动网格分区并行计算方法  

Domain-decomposed parallel computation methods for unstructured dynamic mesh

作　　者：程兴华[1] 刘巍[1] 张理论[1] 

机构地区：[1]国防科技大学海洋科学与工程研究院,湖南长沙410073

出　　处：《国防科技大学学报》2017年第1期81-85,共5页Journal of National University of Defense Technology

基　　金：国家自然科学基金资助项目(11272352)

摘　　要：针对包含运动边界的非定常流动问题,基于弹簧近似法设计了一套非结构动网格分区并行计算流程,引入了METIS软件进行非结构网格二次剖分,研究了对接边界通信类型及其处理方法,基于消息传递并行编程模式实现了非结构动网格求解器的并行化。测试结果表明:该求解器具有较高的并行效率,网格变形模块对非结构动网格并行计算性能具有重要影响。For parallel simulation of the unsteady flow field with moving boundary, a domain-decomposed computation procedure was designed based on the spring analogy method, and the METIS software was introduced to repartition the original grids. With the research of 1 - to - 1 interface communication styles and realization, the unstructured dynamic mesh solver was parallelized based on the message passing interface. The test shows that the solver has high parallel efficiency, and the module of mesh deforming has significant effect on the parallel performance.

关 键 词：非结构网格 动网格 区域分解 并行计算 

分 类 号：O35[理学—流体力学]