Flow Visualization in an Eccentric Annular Flow Passage

Abstract

The present paper describe the flow visualization in an annular flow passage corresponding to the irradiation container of an accelerator driven system. The flow visualization was performed using PIV method for Reynolds number 2000, 3000 and 10000, eccentricity E=0-30mm and two kinds of shape of an inner tube. The working fluid was water and fine particle were utilized as a tracer. Results show that in order to remove the heat from the system, the annular flow passage with the hemisphere shape and the eccentricity is effective.