A NEW FILTERED DYNAMIC SUBGRID-SCALE MODELFOR LARGE EDDY SIMULATION OF INDOOR AIRFLOW

摘要

Large Eddy Simulation (LES) with a DynamicrnSubgrid-scale Model (DSM) is a powerful tool tornpredict indoor airflow. However, the model needs tornaverage the model coefficient over a homogeneousrndirection. Since most indoor airflow does not have arnhomogeneous direction, this study proposed a newrnFiltered Dynamic Subgrid-scale Model (FDSM)rnwithout the need of a homogeneous flow direction.rnThe predicted air velocity, air temperature andrnturbulence distributions agree reasonably well withrnthe experimental data. The results show that thernFDSM can be used to simulate indoor airflow.