Numerical Computation of Laminar FLOW Around a Square Cylinder

Sangeetha, C and Rajani, BN and Majumdar, Sekhar (2000) Numerical Computation of Laminar FLOW Around a Square Cylinder. Project Report. National Aerospace Laboratories, Bangalore, India.

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    Abstract

    Unsteady or periodic flow around a bluff (non-streamlined) body is a very important problem of engineering interest. The well-known phenomenon of periodic vortex-shedding in the wake of a cylinder plays an important role in the design of structures of cylindrical shape exposed to aero- or hydrodynamic loading eg., tall towers, offshore structures etc.. In order to understand and account for the phenomenon of fluid-structure interaction, the first important task to analyse is the time-dependent tlow around the structure. The present work frst attempts to understand the role of unsteady or time dependent terms and their discretisation in the numerical analysis of a simple two-dimensional heat conduction problem. Attention is then focussed to CFD analysis of the periodic laminar flow around a square cylinder at low Reynolds number using an existing Reynolds Averaged Navier Stokes (RANS) code developed in the CTFD Division, NAL after appropriate modification for unsteady terms.

    Item Type: Proj.Doc/Technical Report (Project Report)
    Uncontrolled Keywords: Bluff body, Vortex Shedding, Laminar Flow, Finite Volume13; Navier Stokes solver -
    Subjects: AERONAUTICS > Aerodynamics
    Division/Department: Computational and Theoretical Fluid Dynamics Division, Computational and Theoretical Fluid Dynamics Division, Computational and Theoretical Fluid Dynamics Division
    Depositing User: Mrs Manoranjitha M D
    Date Deposited: 27 May 2005
    Last Modified: 24 May 2010 09:39
    URI: http://nal-ir.nal.res.in/id/eprint/781

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