The Effects of Topygraphy on the Direction and Velocity of Wind

Abstract

In this paper the effects of topography on the direction and velocity of wind are studied hydrodynamically. For the sake of simplicity, the mountain is assumed to be a semi-circular cylinder. Then we can prove that; when a mass of air passes near the top of mountain, the velocity component transverse to the ridge of mountain increases and the directions of wind transverse to the ridge are much more observable than those parallel to the ridge; and such tendencies decrease as the height increases. These are in accordance with the statistical results.