Numerical Downburst Simulation with using Urban Canopy Model

Abstract

The downburst emerges in urban area is numerically simulated. A 10km x 10km square area in Tokyo metropolitan is chosen as a target domain. The aerodynamic effects caused by buildings are treated by an urban canopy model. Comparing those computed results obtained with or without using the canopy model, how the bulings affect strong wind velocitry distributions is shown.