Natural ventilation of buildings can be made by employing pressure difference among different par... more Natural ventilation of buildings can be made by employing pressure difference among different parts of buildings induced by external wind. Wind-catching parts have positive pressure while lee parts have negative one. When there are openings on both sides, airflow is induced through the building. In this study, experiments and numerical computations were conducted to study wind-driven ventilation through two-dimensional scaled models of buildings. The purpose is to examine effects of: 1) pitch angle (p) of the roof, and 2) relative positions of openings on both sides on induced flow-rate through the building. The experiments were performed in the wind tunnel at the Laboratory of Fluid Mechanics of Ho Chi Minh City University of Technology. The scaled models of buildings had dimensions of order of 10cm. Velocities of wind passing the model and induced airflow through the models were measured with a hot-wire anemometer. The computations were made by a CFD (computational fluid dynamics) technique. Governing equations were discretized with Finite Volume Method. Standard κ-ε model was used for turbulence. Computed domain included both the buildings and appropriate extended space.
Natural ventilation of buildings can be made by employing pressure difference among different par... more Natural ventilation of buildings can be made by employing pressure difference among different parts of buildings induced by external wind. Wind-catching parts have positive pressure while lee parts have negative one. When there are openings on both sides, airflow is induced through the building. In this study, experiments and numerical computations were conducted to study wind-driven ventilation through two-dimensional scaled models of buildings. The purpose is to examine effects of: 1) pitch angle (p) of the roof, and 2) relative positions of openings on both sides on induced flow-rate through the building. The experiments were performed in the wind tunnel at the Laboratory of Fluid Mechanics of Ho Chi Minh City University of Technology. The scaled models of buildings had dimensions of order of 10cm. Velocities of wind passing the model and induced airflow through the models were measured with a hot-wire anemometer. The computations were made by a CFD (computational fluid dynamics) technique. Governing equations were discretized with Finite Volume Method. Standard κ-ε model was used for turbulence. Computed domain included both the buildings and appropriate extended space.
Uploads
Papers by NGUYEN QUOC Y