Abstract
Two dimensional distributions of heat transfer coefficient on an inclined flat plate in an underexpanded impinging jet are measured by means of infrared camera. As a result, the temperature and pressure distributions show that the stagnation point at which the wall static pressure and wall temperature become maximum is independent of the pressure ratio for any inclined angles. Furthermore, in case of plate jet, the heat transfer coefficient around the stagnation point is found to be larger than that at the stagnation point itself. On the other hand, the heat transfer for the inclined plate at the same condition as the previous one differ from that for the normal impingement.
