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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/17909
Title: Parallel pressure Poisson solvers for les of complex geometry flows
Authors: Singh K.M.
Avital E.J.
Williams J.J.R.
Ji C.
Munjiza A.
Published in: Proceedings of ASME/JSME/KSME 2015 Joint Fluids Engineering Conference, AJKFluids 2015
Abstract: This paper presents an assessment of performance of parallel pre-conditioners for BICGSTAB solver for numerical solution of the pressure Poisson equation arising in large eddy simulation of turbulent incompressible flows. We explore the performance of geometric multigrid pre-conditioner for the non-uniform grid and compare its performance with additive Schwarz pre-conditioner, Jacobi and SOR(k) pre-conditioners. Numerical experiments have been performed for a wide range of non-uniformity (stretching) of the grid. The fictitious domain geometric multigrid preconditioner shows the best performance followed by the SOR(k) preconditioner. Copyright © 2015 by ASME.
Citation: Proceedings of ASME/JSME/KSME 2015 Joint Fluids Engineering Conference, AJKFluids 2015, (2015)
URI: https://doi.org/10.1115/AJKFluids201529748
http://repository.iitr.ac.in/handle/123456789/17909
Issue Date: 2015
Publisher: American Society of Mechanical Engineers
Keywords: Geometry
Large eddy simulation
Complex geometries
Fictitious domains
Geometric multigrids
Non-uniform grids
Numerical experiments
Numerical solution
Parallel pressure
Pressure Poisson equation
Poisson equation
ISBN: 9.78E+12
Author Scopus IDs: 24308174000
35588715400
57203600818
7202015356
15748619900
Author Affiliations: Singh, K.M., Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India
Avital, E.J., Queen Mary University of London, London, United Kingdom
Williams, J.J.R., Queen Mary University of London, London, United Kingdom
Ji, C., Tianjin University, Tianjin, China
Munjiza, A., Queen Mary University of London, London, United Kingdom
Appears in Collections:Conference Publications [ME]

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