J0101-2-2 Experimental study of "spiral roll" around a rotation disk in a casing

Abstract

In previous studies of a flow caused by a rotating disk in a casing, the geometry of a rotating disk is not considered significantly. Recent studies unveil that a gap of radius direction has an great influence on a flow between a casing base and rotating disks. In this study, we used some kind of rotating disks, and investigate about the influence of a radius direction gap to a flow near the fixed disk. As a result, we confirm that the difference of disk geometries cause different "Front angle" in each disks. Our experimental study analyze "Front angle" in detail.