LAMINAR FLAT PLATE HEAT TRANSFER MEASUREMENTS FROM A DISSOCIATED HIGH ENTHALPY HYPERSONIC AIR FLOW

摘要

Heat transfer rates from a non-equilibrium hypersonic air flow to flat plates at zero and 12 incidence have been measured in a free piston shock tunnel at stagnation enthalpy levels up to 51 MJ/kg. Nozzle flow conditions resulted in test section velocities up to 8.1 km/s and in an experimental regime in which the free stream was chemically frozen and the flat plate boundary layer was laminar. Estimates of the gas phase and surface reaction Damkohler numbers have been made and the heat transfer results are discussed in this context.