PTV of An Inclined Plume Generated by Uniform Buoyancy Flux on A Sloping Wall

A PTV analysis was performed to examine flow structure of a plume that is generated by buoyancy flux discharge imposed on an inclined boundary. Fine nylon particles of 60μm in diameter and 1.02 in a specific weight were used as tracers. The flow field was illuminated by a laser light sheet. Velocity profiles and streamlines from the PTV were compared with a theoretical solution that was obtained from a self-similarity flow analysis. They agreed quite well and the present visualization and the PTV were verified to be a useful measurement tool for such a slow and stratified flow. Performance of the tracer particles was rather satisfactory, despite it is usually difficult to keep tracer particles buoyantly neutral in a stratified flow system.