CHARACTERISTICS OF THE FLOW AROUND RECTANGULAR CYLINDERS - (THE CASE OF THE ANGLE OF ATTACK 0 DEG).

Abstract

Experimental investigations on the characteristics of the flow around rectangular cylinders were carried out in the range of subcritical Reynolds numbers. The width-to-height ratio (C/d) of the sections was varied from 0. 1 to 4. 0. The fluctuating pressure coefficient has a maximum in the same tendency as that of the drag coefficient when C/d equals 0. 67. The differences in flow patterns between two critical values of the ratios C/d equals 0. 67 and 2. 8 become clear. The flow around the cylinder with an arc-like leading-edge corners has been found to agree closely with one around the cylinder with a larger value of the ratio of C/d.