CFD evaluation on the pre- And post- Renovation, and windows and doors opening, of a typical, walled, detached family house in the Philippines

Abstract

Natural ventilation is an important consideration to minimize the usage of mechanical ventilation and air-conditioning systems in the design, use, and renovation of residential houses and buildings. In this study, a computational fluid dynamics (CFD) is used to evaluate the wind field around and inside the walled, detached family house after a series of house renovations, with the effect of window and door openings. The effect of the lot perimeter wall is investigated as to how it affects the wind field around and inside the house. The results show that the height of the lot perimeter wall affects the wind field around and inside the house. They show that the opening of the doors and windows significantly affects the wind field around and inside the house. The construction of the firewall at the back of the house affects the wind field. Based on the results, the design of the house with the consideration of wind direction, neighborhood, and how the occupant uses the house have a great impact on the optimum utilization of the prevailing wind for natural ventilation, as they affect the wind field around and inside the house.