Parallelisation of a navier-stokes code for three dimensional incompressible flows

Sinha, Manish and Majumdar, Sekhar (1993) Parallelisation of a navier-stokes code for three dimensional incompressible flows. Technical Report. National Aerospace Laboratories, Bangalore, India.

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    Abstract

    An existing finite volume method based code developed originally on a sequential computer for calculation of 3D incompressible turbulent flows in complex configurations is parallelised on FLOSOLVER MO , employing the principle of domain decomposition . The sequential version of the implicit algorithm consists of two major parts - (i) transformation of the governing non-linear coupled partial differential equations to a set of quasi linear equation13; system for the pressure , velocity components and other scalars with very large sparse bounded coefficient matrices. The iterative algorithm and the corresponding structure of the code is kept unaltered. In domain decomposition method the computation domain is divided into more than one subdomains and each subdomain is computed in one processor with suitable provisions for the inter-processor data transfer at regions overlapping between adjacent boundaries. The effectiveness of parallel version of the code is demonstrated through comparison between single and multi-processor performance for the computation of 3D laminar flows in S-shaped curved13; ducts of non-circular cross section.

    Item Type: Proj.Doc/Technical Report (Technical Report)
    Uncontrolled Keywords: Domain decomposition;3D navier stokes equation;Laminar flow in curved ducts;Parallel algorithm;Body-fitted coordinates
    Subjects: ENGINEERING > Fluid Mechanics and Thermodynamics
    Division/Department: Computational and Theoretical Fluid Dynamics Division, Computational and Theoretical Fluid Dynamics Division
    Depositing User: Mr. N A
    Date Deposited: 05 Jun 2006
    Last Modified: 24 May 2010 09:42
    URI: http://nal-ir.nal.res.in/id/eprint/1592

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