Developement of a Numerical Procedure for Direct Simulations of Turbulent Convection in a Closed Rectangular Cell
A Seperation of Variables (SoV) scheme has been developed in order to obtain a direct solution to the Poisson problem arising from Chorin’s projection method within rectangular enclosures. The algorithm is compared to the previously used FFT with periodic boundaries and methods to improve the performace of the required transformations are presented. Finally, first results of thermal convection obtained in a closed box geometry are compared to results obtained in a periodic rectangular cell.
KeywordsFast Fourier Transform Nusselt Number Rayleigh Number Discrete Cosine Transform Direct Numerical Simulation
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