24 Visualization of The Flow Through a Annular-Conical Passage

Abstract

The purpose of this study is to investigate the nature of the flow in the passage between two coaxial cones by flow visualization, carried out by means of paraffin mist and a laser light sheet.
The flow passage in the present study is one of the special cases of a radial flow system. Similar to the previous results for radially, outward flow between two parallel disks, it was confirmed that the periodic axisymetrical circular vortices are also generated in the flow through the present annular-conical passage.