Adaptive multi-resolution Large-Eddy Simulation with control of modeling and numerical errors

摘要

In this paper, the MR-LES framework for processing of LES is proposed. This approach enables to generate optimized grids based on the characteristics of the flow. It uses several LES levels that communicate through transfers of the computed velocity field in order to estimate locally where the LES have to be refined or coarsened. From this error measurement, a metric that refers to a local cell size is built. Then, the application of several steps of mesh adaptation enables to converge to a stabilized and optimized mesh.