Parallel methods for simulations of 3D incompressible complex flows
文献类型：会议论文
| 作者 | Rongliang Chen; Zhengzheng Yan; Ziju Liao; Xiao-Chuan Cai |
| 出版日期 | 2015 |
| 会议名称 | 第十届全国计算数学年会 |
| 会议地点 | 广州 |
| 英文摘要 | Numerical simulation of 3D incompressible flows around large scale objects at high Reynolds number using the unsteady Navier-Stokes equations is challeng- ing. In order to obtain accurate simulations, very ne meshes are necessary, and such simulations are increasingly important for modern engineering prac- tices, such as understanding the ow behavior around high speed trains, cars and wind turbines, which can reduce the need for building physical models and wind-tunnel experiments. The computation for this kind of simulations is very challenging because of the large uids domain, the complex geometry, the moving boundary, and the high Reynolds number; thus the use of massively parallel computers and scalable parallel algorithms has become indispensable. In this talk, we introduce a Newton-Krylov-Schwarz based fully implicit method for the 3D unsteady incompressible Navier-Stokes equations discretized with a stabilized nite element method on very ne unstructured meshes. We test the algorithm for some 3D complex unsteady ows, including ows passing a high speed train, a car, and a wind turbine with realistic geometries, realistic Reynolds numbers, and realistic wind speed, on a supercomputer with thousands of processors. Numerical experiments show that the algorithm has almost lin- ear scalability with over 8000 processors for problems with tens of millions of unknowns. |
| 收录类别 | 其他 |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/7023]  |
| 专题 | 深圳先进技术研究院_数字所 |
| 作者单位 | 2015 |
| 推荐引用方式 GB/T 7714 | Rongliang Chen,Zhengzheng Yan,Ziju Liao,et al. Parallel methods for simulations of 3D incompressible complex flows[C]. 见:第十届全国计算数学年会. 广州. |
入库方式： OAI收割
来源：深圳先进技术研究院
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