乱流境界層中の3次元角柱に作用する風圧力のアスペクト比による変化について

Abstract

The wind pressures on 3-dimensional square prism models with various aspect ratios (h/b)were measured in a turbulent boundary layer. The models with the height of 40 cm and thewidths of 2, 4, 10 and 20 cm were used not to change the flow characteristics at the same heightof them.In the windward surfaces the wind pressures were not so much influenced by aspect ratios.In the other surfaces the wind pressures were influenced and to be distributed more uniformlyalong the height with decreasing aspect ratio.