Mixed convection in a lid-driven three-dimensional cavity

Deshpande, MD and Srinidhi, BG (2004) Mixed convection in a lid-driven three-dimensional cavity. Technical Report. National Aerospace Laboratories, Bangalore, India.

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    Abstract

    Mixed convection in a cavity formed by a rectangular parallelepiped of spanwise aspect ratio three has been studied by solving the Navier-Stokes .and the energy equations under the Boussinesq approximation. Buoyancy forces are due to the heating of the bottom wall and13; forcing due to the motion of the top lid. When there is no lid motion represented by Reynolds number Re = 0 there is no fluid motion if the Rayleigh number Ra is below a critical value of 2559fl. The motion of the lid sets the fluid into motion. The complex flow pattern is identified13; in terms of stagnation points, primary vortices and secondary vortices. The interaction between the two forces leads to a variety of flow and heat flux patterns which may be steady, periodic, periodic or turbulent. Dependence of these states on Re and Ra is quite complex as indicated by a parametric study.

    Item Type: Proj.Doc/Technical Report (Technical Report)
    Uncontrolled Keywords: Mixed Conviction;Lid driven cavity;Navier Strokes equations; Periodic solutions;Nusselt number;Critical Rayleigh number
    Subjects: AERONAUTICS > Aerodynamics
    Division/Department: Computational and Theoretical Fluid Dynamics Division, Computational and Theoretical Fluid Dynamics Division
    Depositing User: Ms Indrani V
    Date Deposited: 29 Jan 2009
    Last Modified: 24 May 2010 09:39
    URI: http://nal-ir.nal.res.in/id/eprint/819

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