Effective Parallel Computation of Incompressible Turbulent Flows on Non-uniform Grid

  • Hidetoshi Nishida
  • Nobuyuki Ichikawa
Conference paper
Part of the Lecture Notes in Computational Science and Engineering book series (LNCSE, volume 74)


In order to improve the parallel efficiency of incompressible turbulent flow solver on non-uniform grid, the multigrid technique with the checkerboard SOR method or the rational Runge-Kutta (RRK) scheme for the elliptic partial differential equation solver is presented. The 3D test problem and the DNS of 3D turbulent channel flow with the Reynolds number Reπ = 180 are considered. The results show that the chackerboard SOR relaxation has the property that the computational time is shorter but parallel efficiency is lower than the RRK relaxation. Then, it is necessary to improve the parallel performance, but the present approach has the possibility of short computational time with high parallel efficiency.


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© Springer Berlin Heidelberg 2010

Authors and Affiliations

  1. 1.Department of Mechanical and System EngineeringKyoto Institute of TechnologyKyotoJapan

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