Hot Experimental Technique: A New Requirement of Aerothermodynamics

摘要

The flow past hypersonic vehicles causes large heat loads on the vehicle surface.It is shown that the heat loads and the flow properties are strongly coupled if radiation cooling is employed. Similar phenomena occur in interacting flows and in nonequilibrium viscous flows. The large demands on ground facility simulation of hypersonic flows make new methods in experimental work necessary. A hot experimental technique, each for three different typical measurement problems, is proposed. Details of the technique, regarding the tunnel type, model, and measurement techniques are discussed. A stepwise approach to the involved problems is suggested.