HLPW-4: Wall-Modeled Large-Eddy Simulation and Lattice–Boltzmann Technology Focus Group Workshop Summary

Wall-modeled large-eddy simulation of a separated flow over the NASA wall-mounted hump

Wall-modeled large-eddy simulation (WMLES) attempts to provide a predictive but affordable framework for LES by modeling the effect of the computationally demanding inner-layer structures on the outer-layer flow. The grids employed in LES are designed to resolve the outer layer only, thereby reducing the computational cost of LES significantly to affordable levels. The saving in the computation...

Wall-modeled large-eddy simulations of the HIFiRE-2 scramjet

Wall-modeled large eddy simulation in complex geometries with application to high-lift devices

In large eddy simulations (LES) of wall-bounded flows, the need to resolve energycarrying eddies in the vicinity of the wall leads to a prohibitive cost which prevents its use at very high Reynolds numbers. To overcome this limitation, many attempts have been made in the last two decades to model the unresolved scales near the wall. These works mainly focused on two different approaches: hybrid...

Aero-optical Predictions of High-reynolnds Number Flows Using Wall-modeled Large-eddy Simulation

by Mohammed S. Kamel Reliable prediction of optical wavefront distortions induced by compressible turbulent flow surrounding an aperture is crucial to the development of airborne laser systems. Large-eddy simulation (LES) with a wall model provides a promising highfidelity simulation method for high-Reynolds-number aero-optical flows by avoiding the severe near-wall resolution requirement. In t...

Wall-modeled large eddy simulation of shock/turbulent boundary-layer interaction in a duct