Flow visualization using natural condensation of water vapor
Michael Brendel · AIAA Journal · 1995
This work involves the use of naturally occuring condensed water vapor as flow tracer in a blown-down wind tunnel with a laser light sheet as the illumination source. Images are obtained with a digital camera and then recorded on a microcomputer for processing and interpretation. This represents an advance over prior attempts which relied upon conventional photographic methods. The focus of this study is to determine the suitability of the technique to resolve flow features in a transonic flow. Digital flow visualizations of the flow about simple models placed at the exit of a converging-diverging nozzle are presented.