Analysis of aeroheating-temperature field coupling characteristics for thermal protection panel of quasi-wavrider

For thermal protection panel of quasi-waverider, the loose coupling algorithm was applied to drive the iteration of the aeroheating and heat transfer analysis. Then, the coupling characteristics of aeroheating-temperature field were studied. The results show that, before radiative equilibrium, the errors of cold wall and radiative equilibrium aeroheating are +55.1% and -15.4% over actual aeroheating respectively, so coupling analysis for aeroheating-temperature field was required. As the local adiabatic wall temperature is not changed with time, the surface heat-transfer coefficient is a key parameter for coupling effect. Only two aeroheating calculations are needed during calculation of coupling aeroheating-temperature field with average heat convection coefficient, and the error of predicted wall temperature is less than 2.5%, thus highly improving the analysis efficiency of coupled aeroheating-temperature field.