Abstract
The jet issuing along the cylinder wall in its longitudinal direction has been dealt with in this paper. The attention has been focused on the flow aspect in the cross section normal to the flow. The effects of the curvature of the cylinder on the flow aspect have been investigated by means of the flow visualization and the image processing, using some cylinders with various diameters. As a result, it has been found that the large-scale swirling flow has been recognized in both sides of the jet and the jet mid-plane fluctuates largely due to this swirling flow. It has been also clarified that the jet mid-plane swings largely for the cylinder with a certain curvature.
