Abstract
The interaction of a plane shock wave with a thermal boundary layer has been studied experimentally in the shock tube and a theory developed for those cases in which the shock is sufficiently strong and the heating small enough for the shock to extend clear to the surface. The experiment involves a technique of sliding a hot plate into the shock tube just before the shock arrives. The time required for establishment of steady conditions has been determined and the theory tested with experiments using shocks up to a pressure ratio of 1.36 and surface temperatures up to 80°C. The observed shape of the shock and pressure distribution along the surface agree well with predictions. When the speed of sound a t the surface exceeds the shock velocity, pressure disturbances propagate ahead of the main wave and the total pressure rise extends over about two heated thicknesses. Finally, the possibility of extending the experimental results to more extreme conditions by an analogy with diffusion of gases is discussed.
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