Les and Des Investigations of Turbulent Flow over a Sphere

  title={Les and Des Investigations of Turbulent Flow over a Sphere},
  author={G. Constantinescu and Kyle D. Squires},
Large Eddy Simulation (LES) and Detached Eddy Simulation (DES) are applied to prediction and investigation of the ow around a sphere. DES is a hybrid approach in which the closure is a simple modi cation to the Spalart-Allmaras model, reducing to Reynolds-Averaged Navier-Stokes (RANS) in attached regions, and LES away from the wall . Calculations are performed at a Reynolds number, Re = 10, in the sub-critical regime where there is a laminar boundary layer separation from the sphere. A fth… CONTINUE READING


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