Visualization of heat transfer

A survey of recently published papers which describe new experimental methods for heat transfer visualization or the application of such methods for investigating heat transfer problems is presented. The study of surface flow patterns and wall temperature by the oil-flow technique, the naphthalene sublimation technique, and temperature-sensitive paints is considered. The use of tracer materials to visualize the flow field is discussed, and optical methods of visualizing the field are described, presenting photographic illustrations.