INVESTIGATION OF HEAT-TRANSFER TESTING IN INTERMITTENT WIND TUNNELS PART Ⅰ – SOLID CONES IN SUPERSONIC TUNNELS

摘要

A heat transfer investigation was conducted in the intermittent supersonic wind tunnels of the David Taylor Model Basin oh two solid copper cones of approximately 50° included angle. The primary purpose of the investigation vas to deter¬mine the effects of tunnel run times, Mach number, and other parameters on the heat-transfer coefficient. The investigation was also to provide heat-transfer testing techniques for the proposed Hypersonic Test Facility.nThe results of the investigation (presented in graphical form) show that, in general, heat-transfer coefficients cal¬culated from temperature time histories for runs of 65 seconds duration or greater provided coefficient values with sufficient accuracy, and these values compared well with similar data ob¬tained at other facilities.