LES of incompressible turbulent flow inside a cubical cavity driven by two parallel lids moving in opposite direction - effect of Reynolds number

Abstract

Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.Large-eddy simulation (LES) of the incompressible turbulent flow in a two-sided lid-driven cubical cavity with lids moving in anti-parallel direction have been carried out at Reynolds numbers of 12000 and 18000 using a computer code developed in-house. Time averaged solutions have been obtained by performing simulations using multiprocessing. The presence of multiple eddies other than the well known two corner eddies have been observed in the transverse plane of main core flow direction at both Reynolds number. The specific features of turbulent flow inside the cavity such as some second-order turbulent statistics, turbulent production, dissipation of turbulence have been investigated in the entire domain.