LES Simulation on Thermal Environment and Vegetation Effect in Urban Area

Abstract

Central regions of big cities are becoming warmer and wamer due to the construction of tall buildings and paved roads and the reduction of green and water area; i. e. the formation of “HEAT ISLANDS”. In order to evaluate the effects of vegetation in the thermal environment of urban region, numerical simulations of air flow and thermal condition have been performed, applying LES turbulence model to show the mitigation effects by the evapotranspiration of plants.