CFD Prediction of Wind Pressure Distributions Resulting from a Traveling Tornado-like Swirling Flow

Abstract

CFD prediction of wind pressure distributions resulting from a traveling tornado-like swirling flow is conducted.  When a tornado-like vortex travels along the centerline of a building, a large magnitude of suction peak occurs on the roof surface and eaves.  If the building has an opening on a right-side wall, the maximum peak pressure increases on a left-side wall and the magnitude of roof surface negative peak pressure decreases.  In the case of frontal-wall opening, the maximum peak and the magnitude of negative peak pressure increase along wind ward wall or eaves.