Abstract
We tested the ability of the LES model CLMM (Charles University Large-Eddy Microscale Model) to model the stratified flow around three dimensional hills. We compared the quantities, as the height of the dividing streamline, recirculation zone length or length of the lee waves with experiments by Hunt and Snyder[3] and numerical computations by Ding, Calhoun and Street[5]. The results mostly agreed with the references, but some important differences are present.
Highlights
The atmospheric flows affected by a stable temperature stratification are known to be connected with problematic pollution dispersion and are difficult to simulate
We tested the ability of the large eddy simulation (LES) model CLMM (Charles University Large-Eddy Microscale Model) to model the stratified flow around three dimensional hills
In this contribution we present a set of computations of idealised stratified flows around an isolated hill as a test of capabilities of the numerical model CLMM (Charles University Large-Eddy Microscale Model)
Summary
The atmospheric flows affected by a stable temperature stratification are known to be connected with problematic pollution dispersion and are difficult to simulate. In this contribution we present a set of computations of idealised stratified flows around an isolated hill as a test of capabilities of the numerical model CLMM (Charles University Large-Eddy Microscale Model). This configuration can serve as a model of flow around an island.
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