Annual Meeting 2005, Japan Association for Wind Engineering
Session ID : s3-7
Conference information
LES Of Stably Stratified Flow Over A Wavy Wall
Mechanism Of Turbulence Transport
Details
Large eddy simulation (LES) was performed for stably stratified flow over a wavy wall. Low-Mach-number approximation was applied to treat the effects of density variation. Discussion was given to the mechanism of turbulence transport, and stable stratification was suggested (1) to increase the energy transport between Reynolds normal stresses far from the wavy wall, and (2) to reduce the spatial transport of turbulence near the wall. In the transport mechanism clarified here, however, the structural change by stable stratification was small, and flow structures were not markedly changed as well.
