LES of spatially-developing convective boundary layer on changing earth surface temperature distribution

Abstract

In this research, in order to generate the inflow turbulence, the turbulence parameters for velocities at recycle station are rescaled and introduced to the inlet boundary, while temperature is treated as a passive scalar. The generated inflow data for temperature as well as velocities are introduced into the main computational domain, where temperature is solved taking into consideration buoyancy effects. We carry out LES analysis of the spatially-developing convective boundary layer on changing earth surface roughness and temperature distribution. We discuss the necessity of considering temperature distribution.