Author: Caesar Wiratama
Abstract
Wind-driven natural convection plays an important role in indoor airflow, thermal comfort, and ventilation performance in naturally ventilated houses. This study presents a CFD analysis of external wind-induced natural ventilation in a residential building using OpenFOAM with a standardized tensorHVAC workflow. The simulations capture airflow circulation, temperature distribution, and ventilation effectiveness resulting from interactions between doors and windows. Results show high air velocities near the main entrance, effective circulation in the living area, and well-distributed airflow in private rooms. Indoor temperatures remain relatively uniform with no significant hotspots, while comfort indices and air age indicate generally acceptable thermal comfort and ventilation performance. The study demonstrates the value of CFD for evaluating wind-driven natural ventilation in residential buildings.
