Seventh International Symposium on Turbulence and Shear Flow Phenomena
DOI: 10.1615/TSFP7
DIRECT AND LARGE EDDY SIMULATION OF STRATIFIED TURBULENCE
pages 1-6
DOI: 10.1615/TSFP7.170
RESUMO
Simulation of geophysical turbulent flows requires a robust and accurate subgrid-scale turbulence modeling. We propose an implicit subgrid-scale model for stratified fluids, based on the Adaptive Local Deconvolution Method. To validate this turbulence model, we performed direct numerical simulations of the transition of the three-dimensional Taylor−Green vortex and homogeneous stratified turbulence. Our analysis proves that the implicit turbulence model correctly predicts the turbulence energy budget and the spectral structure of stratified turbulence.