Numerical simulations have been undertaken for the problem of natural convection flow in a square cavity. The finite element method is applied to governing equations of laminar flow in a series of Rayleigh numbers R a from 10 3 up to 10 6 . To increase the performance of square cavities, the hot and cold walls have been tilted from the vertical position. The solutions of the base cavity and tilting-wall cavity problem have been performed; flow and thermal field solutions have been presented for a few numbers of cases. Increasing density uniform grids with respect to Rayleigh numbers have been served in all cases, and a grid study has been performed to guarantee accurate solutions. The tilting angles have been chosen as 3 or 5 deg, and the direction of rotation was inside or outside. In some cases, the heat transfer performance of the cavity has been corrupted; however, an increase in the performance of up to 7% was acquired.


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    Title :

    Numerical Investigation of Natural Convection in a Square Cavity with Tilting Walls


    Contributors:
    Bahoosh, R. (author) / Mohamadi, F. (author) / Karimi, M. (author)

    Published in:

    Publication date :

    2015-10-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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