Validation of CFD Simulations for Natural Ventilation

Natural ventilation, which may provide occupants with good indoor air quality and a high level of thermal comfort, and reduce energy costs, has become an important sustainable strategy in building designs. This investigation used three computational fluid dynamics (CFD) models: steady Reynolds averaged Navier-Stokes equation (RANS) modelling, unsteady RANS modelling, and large eddy simulation (LES) to study both wind-driven and buoyancy-driven natural ventilation.