Practical aspects of p-multigrid discontinuous galerkin solver for steady and unsteady rans simulations
文献类型：期刊论文
| 作者 | Jiang, Zhenhua1; Yan, Chao1; Yu, Jian1; Yuan, Wu2 |
| 刊名 | International journal for numerical methods in fluids
 |
| 出版日期 | 2015-08-20 |
| 卷号 | 78期号:11页码:670-690 |
| 关键词 | P-multigrid Discontinuous galerkin method High order Reynolds-averaged navier-stokes equations |
| ISSN号 | 0271-2091 |
| DOI | 10.1002/fld.4035 |
| 通讯作者 | Yan, chao(v_azlk@126.com) |
| 英文摘要 | Efficient and robust p-multigrid solvers are presented for solving the system arising from high-order discontinuous galerkin discretizations of the compressible reynolds-averaged navier-stokes (rans) equations. two types of multigrid methods and a multigrid preconditioned newton-krylov method are investigated, and both steady and unsteady algorithms are considered in this paper. for steady algorithms, a new strategy is introduced to determine the cfl number, which has been proved to be critical in achieving the effective and stable convergence for p-multigrid methods. we also suggest a modified smoothing technique to further improve the efficiency of the algorithms. for unsteady algorithms, special attention has been paid to the cycling strategy and the full multigrid technique, and we point out a significant difference on the parameter selection for unsteady computations. the capabilities of the resulted solvers have been examined by performing steady and unsteady rans simulations. comparative assessment in terms of efficiency, robustness, and memory consumption are carried out for all solvers. copyright (c) 2015 john wiley & sons, ltd. |
| WOS关键词 | NAVIER-STOKES EQUATIONS ; HIGH-ORDER METHODS ; TURBULENCE MODEL ; GRIDS ; SCHEMES ; LAMINAR ; FLOWS ; DISCRETIZATIONS ; COMPUTATION ; EULER |
| WOS研究方向 | Computer Science ; Mathematics ; Mechanics ; Physics |
| WOS类目 | Computer Science, Interdisciplinary Applications ; Mathematics, Interdisciplinary Applications ; Mechanics ; Physics, Fluids & Plasmas |
| 语种 | 英语 |
| WOS记录号 | WOS:000357853500002 |
| 出版者 | WILEY-BLACKWELL |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2374078 |
| 专题 | 计算机网络信息中心 |
| 通讯作者 | Yan, Chao |
| 作者单位 | 1.Beijing Univ Aeronaut & Astronaut, Coll Aeronaut Sci & Engn, Beijing 100191, Peoples R China 2.Chinese Acad Sci, Comp Network Informat Ctr, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Zhenhua,Yan, Chao,Yu, Jian,et al. Practical aspects of p-multigrid discontinuous galerkin solver for steady and unsteady rans simulations[J]. International journal for numerical methods in fluids,2015,78(11):670-690. |
| APA | Jiang, Zhenhua,Yan, Chao,Yu, Jian,&Yuan, Wu.(2015).Practical aspects of p-multigrid discontinuous galerkin solver for steady and unsteady rans simulations.International journal for numerical methods in fluids,78(11),670-690. |
| MLA | Jiang, Zhenhua,et al."Practical aspects of p-multigrid discontinuous galerkin solver for steady and unsteady rans simulations".International journal for numerical methods in fluids 78.11(2015):670-690. |
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