Parallel exponential time differencing methods for geophysical flow simulations
文献类型：期刊论文
| 作者 | Lan, Rihui1; Leng, Wei2; Wang, Zhu1; Ju, Lili1; Gunzburger, Max3 |
| 刊名 | COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
 |
| 出版日期 | 2021-12-15 |
| 卷号 | 387页码:24 |
| 关键词 | Shallow water equations Primitive equations Exponential time differencing Parallel computing Barotropic/baroclinic splitting |
| ISSN号 | 0045-7825 |
| DOI | 10.1016/j.cma.2021.114151 |
| 英文摘要 | Two ocean models are considered for geophysical flow simulations: the multi-layer shallow water equations and the multi-layer primitive equations. For the former, we investigate the parallel performance of exponential time differencing (ETD) methods, including exponential Rosenbrock-Euler, ETD2wave, and B-ETD2wave. For the latter, we take advantage of the splitting of barotropic and baroclinic modes and propose a new two-level method in which an ETD method is applied to solve the fast barotropic mode. These methods could improve the computational efficiency of numerical simulations because ETD methods allow for much larger time step sizes than traditional explicit time-stepping techniques that are commonly used in existing computational ocean models. Several standard benchmark tests for ocean modeling are performed and comparison of the numerical results demonstrates a great potential of applying the parallel ETD methods for simulating real-world geophysical flows. (C) 2021 Elsevier B.V. All rights reserved. |
| 资助项目 | U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research through Earth and Environmental System Modeling and Scientific Discovery through Advanced Computing programs[DE-SC0020270] ; U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research through Earth and Environmental System Modeling and Scientific Discovery through Advanced Computing programs[DE-SC0020418] ; National Science Foundation[DMS-1818438] ; National Science Foundation[DMS-2109633] ; National Energy Research Scientific Computing Center (NERSC) , a U.S. Department of Energy Office of Science User Facility[DE-AC02-05CH11231] |
| WOS研究方向 | Engineering ; Mathematics ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000702651300002 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.amss.ac.cn/handle/2S8OKBNM/59323]  |
| 专题 | 中国科学院数学与系统科学研究院 |
| 通讯作者 | Ju, Lili |
| 作者单位 | 1.Univ South Carolina, Dept Math, Columbia, SC 29208 USA 2.Chinese Acad Sci, State Key Lab Sci & Engn Comp, Beijing 100190, Peoples R China 3.Florida State Univ, Dept Comp Sci, Tallahassee, FL 32306 USA |
| 推荐引用方式 GB/T 7714 | Lan, Rihui,Leng, Wei,Wang, Zhu,et al. Parallel exponential time differencing methods for geophysical flow simulations[J]. COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING,2021,387:24. |
| APA | Lan, Rihui,Leng, Wei,Wang, Zhu,Ju, Lili,&Gunzburger, Max.(2021).Parallel exponential time differencing methods for geophysical flow simulations.COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING,387,24. |
| MLA | Lan, Rihui,et al."Parallel exponential time differencing methods for geophysical flow simulations".COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING 387(2021):24. |
入库方式： OAI收割
来源：数学与系统科学研究院
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