Variation of Indoor Airflow Patterns under Dynamic Outdoor Wind Conditions in Large Space Naturally Ventilated Buildings

Understanding Indoor Airflow Patterns (IAPs) helps control air contaminants in large naturally ventilated buildings (NVBs). However, the effect of random and unpredictable changes outdoor wind conditions (OWC) is a major contributor to variation IAPs NVBs, making IAP uncontrollable. This study presents results field measurements numerical simulation NBV characteristic under dynamical OWC. The OWC data monitored real time was processed with Kalman Filtering (KF) gradient method decompose prior being entered into CFD solver. trend similar between simulated measured full size NVB. In addition, distribution internal turbulence intensity varied widely depending on spatial locations intervals. speeds vicinity windbreaks greatly affected certain frequency scale. not only prove that be an efficient tool for prediction time-averaged IAP, but also initialize measures IAQ dynamic space NVBs.