Analysis of a two-dimensional, turbulent wall jet along a circular cylinder. (2nd Report, Effects of nozzle width).

Abstract

A two- or three-dimensional jet along a curved wall, by the Coanda effect, has been investigated by many researchers. In spite of many studies on this Coanda jet flow, the flow characteristics have not been completely understood. The authors clarified the velocity and pressure distributions for a two-dimensional jet along a circular cylinder by a theoretical analysis using an integral momentum equation and an experimental analysis. This paper clarifies the effects of nozzle width experimentally on the flow characteristics, velocity and pressure distributions, position of separation, decay of jet centerline velocity, change of jet width, etc.