KMS Of Academy of mathematics and systems sciences, CAS
| A new parallel strategy for two-dimensional incompressible flow simulations using pseudo-spectral methods | |
Yin, Z; Yuan, L ; Tang, T
| |
| 2005-11-20 | |
| Source Publication | JOURNAL OF COMPUTATIONAL PHYSICS
 |
| ISSN | 0021-9991 |
| Volume | 210Issue:1Pages:325-341 |
| Abstract | A novel parallel technique for Fourier-Galerkin pseudo-spectral methods with applications to two-dimensional Navier-Stokes equations and inviscid Boussinesq approximation equations is presented. It takes advantage of the programming structure of the phase-shift de-aliased scheme for pseudo-spectral codes, and combines the task-distribution strategy [Z. Yin, H.J.H. Clercx, D.C. Montgomery, An easily implemented task-based parallel scheme for the Fourier pseudo-spectral solver applied to 2D Navier-Stokes turbulence, Comput. Fluid 33 (2004) 509] and parallelized Fast Fourier Transform scheme. The performances of the resulting MPI Fortran90 codes with the new procedure on SGI 3800 are reported. For fixed resolution of the same problem, the peak speed of the new scheme can be twice as fast as the old parallel methods. The parallelized codes are used to solve some challenging numerical problems governed by the Navier-Stokes equations and the Boussinesq equations. Two interesting physical problems, namely, the double-valued omega-psi structure in two-dimensional decaying turbulence and the collapse of the bubble cap in the Boussinesq simulation, are solved by using the proposed parallel algorithms. (c) 2005 Elsevier Inc. All rights reserved. |
| Keyword | parallel computing pseudo-spectral methods task distribution Navier-Stokes equations Boussinesq equations |
| DOI | 10.1016/j.jcp.2005.04.010 |
| Language | 英语 |
| WOS Research Area | Computer Science ; Physics |
| WOS Subject | Computer Science, Interdisciplinary Applications ; Physics, Mathematical |
| WOS ID | WOS:000231265500013 |
| Publisher | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.amss.ac.cn/handle/2S8OKBNM/2166 |
| Collection | 计算数学与科学工程计算研究所 |
| Corresponding Author | Tang, T |
| Affiliation | 1.Chinese Acad Sci, LSEC, Inst Computat Math, Acad Math & Syst Sci, Beijing 100080, Peoples R China 2.Hong Kong Baptist Univ, Dept Math, Hong Kong, Hong Kong, Peoples R China |
| Recommended Citation GB/T 7714 | Yin, Z,Yuan, L,Tang, T. A new parallel strategy for two-dimensional incompressible flow simulations using pseudo-spectral methods[J]. JOURNAL OF COMPUTATIONAL PHYSICS,2005,210(1):325-341. |
| APA | Yin, Z,Yuan, L,&Tang, T.(2005).A new parallel strategy for two-dimensional incompressible flow simulations using pseudo-spectral methods.JOURNAL OF COMPUTATIONAL PHYSICS,210(1),325-341. |
| MLA | Yin, Z,et al."A new parallel strategy for two-dimensional incompressible flow simulations using pseudo-spectral methods".JOURNAL OF COMPUTATIONAL PHYSICS 210.1(2005):325-341. |
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