Investigation on the heat flux of heat sink chamber

The wall temperature and pressure in cooper heat sink chamber were measured under different velocity ratios of hydrogen to oxygen during hot fire tests of the shear-coaxial injector. The characteristic velocity efficiency and temperature distribution of the chamber wall were analyzed, and the heat flux distribution along the axial direction of the chamber and the quantity of heat absorbed by the chamber were calculated; and the proportion of the energy released for the propellant was computed. The method provides useful insight into the engineering applications.