A new parallel strategy for two-dimensional incompressible flow simulations using pseudo-spectral methods

doi:10.1016/j.jcp.2005.04.010

	A new parallel strategy for two-dimensional incompressible flow simulations using pseudo-spectral methods
	Yin, Z ; Yuan, L; Tang, T
	2005-11-20
发表期刊	JOURNAL OF COMPUTATIONAL PHYSICS
ISSN	0021-9991
卷号	210 期号:1 页码:325-341
摘要	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.
关键词	parallel computing pseudo-spectral methods task distribution Navier-Stokes equations Boussinesq equations
DOI	10.1016/j.jcp.2005.04.010
语种	英语
WOS研究方向	Computer Science ; Physics
WOS类目	Computer Science, Interdisciplinary Applications ; Physics, Mathematical
WOS记录号	WOS:000231265500013
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/2166
专题	计算数学与科学工程计算研究所
通讯作者	Tang, T
作者单位	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
推荐引用方式 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.