EFFECTS OF GAS MOTION ON HETEROGENEOUS COMBUSTION; NATURAL CONVECTION, STEADY FORCED CONVECTION, STEADY FORCED CONVECTION, STANDING ACOUSTIC WAVES, AND SHOCK WAVES FINAL SUMMARY REPORT

摘要

Two experimental techniques have been used to determine the effects of gas motion upon the combustion of liquid fuels under extremes of conditions resembling those found in liquid rocket combustion chambers.nIn the first technique methanol was burned as it flowed down a vertical quartz fibre mounted in a pressure vessel containing pure oxygen at pressures from 1.0 to 10.2 atmospheres. The combustion rate was determined under conditions of natural convection, with steady forced flow transverse to the fibre; and with the fibre held at the velocity loop of a very strong standing acoustic field. The applica¬tion of conventional heat and mass transfer correlations for cylinders give theo¬retical values for combustion rate which are in fairly close agreement with the experimentally observed data. Reynolds number (based on fuel element diameter) was varied from 340.0 to 5300.0. Grashof number was varied from 1.3 million to 340.0 million. In the acoustic field the Reynolds number was derived from the mean gas particle velocity.