Numerical prediction of snow distribution on detached houses

development of coupled simulation of CFD and heat balance model and its validation based on field measurement

Abstract

In this study, a basic investigation to develop a numerical simulation system to predict snow distribution on a detached house with high accuracy was conducted. Firstly, the CFD model of snow erosion and deposition had been developed by the authors who conducted their examinations by comparing the results of field measurement. The revised type k-a model which included the buoyancy effects due to density difference and the influence of snow particles on turbulent flow field was developed. Prediction accuracy of the numerical results obtained by the new model is examined by comparing with results obtained by the previous model and field measurements.