Laminar flow past a circular cylinder at reynolds number varying from 50 to 5000

Rajani, BN and Lanka, Harsha Gopal and Majumdar, Sekhar (2005) Laminar flow past a circular cylinder at reynolds number varying from 50 to 5000. Technical Report. National Aerospace Laboratories, Bangalore, India.

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    Abstract

    The present work aims at calculation of 2D laminar flow past a circular cylinder at Reynolds numbers varying from 50 to 5000 using an implicit pressure-based finite13; volume type Navier Stokes code for unsteady incompressible flow. The flow solution algorithm employs non-orthogonal boundary-fitted curvilinear grid with collocated variable arrangement coupled to low diffusive second order accurate schemes for discretisation of the non-linear convective fluxes and 2nd order accurate temporal discretisation schemes. The predictor-corrector type solution strategy of the SIMPLE algorithm is used with appropriate odifications for collocated variable arrangement. The computational results for mean surface pressure, skin friction, separation points,instantaneous streamlines and the temporal variation of the aerodynamic coefficients like13; lift and drag are validated against measurement and other computational data for both steady and periodic vortex shedding situations.

    Item Type: Proj.Doc/Technical Report (Technical Report)
    Uncontrolled Keywords: Incompressible flow;Navier Stokes solver;Boundary fitted coordinates;Second order accurate discretisation;Vortex shedding
    Subjects: AERONAUTICS > Aeronautics (General)
    Division/Department: Computational and Theoretical Fluid Dynamics Division, Computational and Theoretical Fluid Dynamics Division, Computational and Theoretical Fluid Dynamics Division
    Depositing User: Ms Indrani V
    Date Deposited: 03 Feb 2009
    Last Modified: 24 May 2010 09:39
    URI: http://nal-ir.nal.res.in/id/eprint/837

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