Turbulence Heat and Mass Transfer 6. Proceedings of the Sixth International Symposium On Turbulence Heat and Mass Transfer
DOI: 10.1615/ICHMT.2009.TurbulHeatMassTransf
ISBN Print: 978-1-56700-262-1
ISSN: 2377-2816
LES near the turbulent/nonturbulent interface in jets
page 4
DOI: 10.1615/ICHMT.2009.TurbulHeatMassTransf.1460
SINOPSIS
A-priori tests and large-eddy simulations based on turbulent plane jets are used to assess the region bounding the turbulent and irrotational (non turbulent) region that exists in many free shear layers. Near the turbulent/nonturbulent (T/NT) interface the subgrid-scales are far from equilibrium and contain an important percentage of the total kinetic energy. The Smagorinsky model constant has to be changed and the dynamic procedure does is not able to distinguish between the turbulent and nonturbulent regions.