Inflow turbulence generation for large eddy simulation in non-isothermal boundary layers

阅读量：

作者：

展开

摘要：

We focused on the generation of inflow turbulence for LES in non-isothermal boundary layers. A precursor simulation and a recycling method were investigated. Large damping was necessary to decrease the turbulence for recycling procedure in a stable boundary layer. Giving only a mean temperature profile as inflow condition of the driver region was the simplest way.

展开

关键词：

Practical, Theoretical or Mathematical, Experimental/ boundary layer turbulence damping flow simulation fluctuations recycling statistics stratified flow wind tunnels/ inflow turbulence generation large eddy simulation nonisothermal boundary layers turbulent inflow data inflow fluctuations neutral boundary layer nonisothermal cases wind tunnel stable turbulent thermal boundary layers unstable turbulent thermal boundary layers thermally stratified wind tunnel Tokyo Polytechnic University buoyancy effect recycling procedure turbulence statistics flow generation large damping turbulence level temperature field inflow boundary condition inflow temperature fluctuation temperature fluctuation downstream direction velocity fluctuation/ A4725F Boundary layer and shear turbulence A4760 Flows in ducts, channels, and conduits A4755H Stratified flows A4710 General fluid dynamics theory, simulation and other computational methods A4785 Applied fluid mechanics E2130 Fluid mechanics and aerodyn