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.
|Title of host publication||High Performance Computing in Science and Engineering '11|
|Subtitle of host publication||Transactions of the High Performance Computing Center, Stuttgart (HLRS) 2011|
|Number of pages||13|
|ISBN (Print)||3642238688, 9783642238680|
|Publication status||Published - 1 Aug 2012|