Chapter

New Results in Numerical and Experimental Fluid Mechanics VI

Volume 96 of the series Notes on Numerical Fluid Mechanics and Multidisciplinary Design (NNFM) pp 381-388

Developement of a Numerical Procedure for Direct Simulations of Turbulent Convection in a Closed Rectangular Cell

  • Matthias KaczorowskiAffiliated withGerman Aerospace Center (DLR) - Institute of Aerodynamics and Flow Technology
  • , Andrei ShishkinAffiliated withGerman Aerospace Center (DLR) - Institute of Aerodynamics and Flow Technology
  • , Olga ShishkinaAffiliated withGerman Aerospace Center (DLR) - Institute of Aerodynamics and Flow Technology
  • , Claus WagnerAffiliated withGerman Aerospace Center (DLR) - Institute of Aerodynamics and Flow Technology

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Abstract

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.