Visualization Study of the Flow Pattern around a Rectangular Cylinder in a Uniform Shear Flow

Abstract

This paper is concerned with the frequency of vortex shedding from a rectangular cylinder and flow pattern around it in a uniform shear flow. The experiment is carried out in a water channel by visualization used tracer technique and by L.D.V. measurements of velocity fluctuation near 10³ of Reynolds number. It is found that the critical shapes of rectangular cylinder between perfectly separated pattern and reattached one appear wider range of width-to-height ratio as larger shear rate of the incident flow.