Scalable Parallel Implicit Algorithm for Advanced Turbulence Closures

L.K. Taylor, R. Pankajakshan, W.R. Briley, and D.L. Whitfield
UT SimCenter at Chattanooga, The University of Tennessee at Chattanooga, Chattanooga, Tennessee, 37403

Two Reynolds Stress models are implemented in an existing scalable parallel incompressible flow solver. Computations for standard channel and flat plate cases are compared to theoretical and Direct Numerical Simulation results. Simulations of the DARPA SUBOFF body are compared to experimental data. The simulations displayed robust convergence for high Reynolds number flows with sublayer resolved grids. Reynolds stress model based simulations were found to be a third more expensive than two-equation turbulence model computations in terms of runtime.