1984 年 32 巻 370 号 p. 661-665
This paper describes an experimental study of the flow past rectangular cylinder of square section placed on a plane boundary. The experiment was carried out in an N.P.L. blowdown type wind-tunnel having a working section of 500mm×500mm×2, 000mm in size at the Reynolds number 4.74×104. The surface-pressure distributions on the rectangular cylinders were measured, and the vortices of two kinds generated in the flow-field around a rectangular cylinder have also been observed. Consequently, it is found that the flow patterns and vortices around a rectangular cylinder of W/D (ratio of length to width)=1.5 is different from those for W/D=0.06-1.0.