Thermal stratification is common indoors in large space buildings,and the variable indoor and outdoor temperature differences in subtropical regions affect the accessibility and stability of indoor airflow.The simulation method combining building energy modeling(BEM)and CFD is used to analyze and extract the thermal boundary conditions of medium-sized gymnasiums in subtropical regions,and the natural ventilation efficiency of four types of ventilation openings'combination is compared.The results indicate that the indoor and outdoor temperature difference in subtropical regions alternate between positive and negative,and there are significant differences in natural ventilation phenomena and efficiency under different ambient temperature differences.The longitudinal openings'combination composed of low windows and skylights has better performance in ventilation efficiency and airflow stability,which can better adapt to the natural ventilation environment in subtropical regions driven by wind and buoyancy.
subtropical regionsmedium-sized gymnasiumdriven by wind and buoyancynatural ventilation openingsCFD
NETL
NSTL
万方数据
