LIQUID PROPELLANT GUN SYSTEM DESIGN OPTIMIZATION

A NUMERICAL SIMULATION OF TRANSIENT TWO-PHASE REACTING FLOW IN LIQUID PROPELLANT GUN SYSTEM IS PROPOSED. SIMULTANEOUS SOLUTION OF THE PROJECTILE POSITION AND INTERNAL FLUID DYNAMICS WILL ALLOW THE OPTIMUM SPATIAL/TEMPORAL PROPELLANT AND HEAT RELEASE DISTRIBUTION TO BE DETERMINED. AT THAT OPTIMUM THE PROJECTILE KINETIC ENERGY AT THE MUZZLE EXIT WILL BE A MAXIMUM AND THE MUZZLE FLASH A MINIMUM. A CONTINUOUSLY-VARIABLE PROPELLENT LOAD WILL BE COMPUTED FOR INJECTION AT ANY ELEVATION ANGLE TO EFFECT INFINITE CONTROL OF THE PROJECTILE VELOCITY. THE EFFECT OF SWIRL AS A COMBUSTION CONTROL VARIABLE SHALL BE ASSESSED AND MULTI-DIMENSIONAL FLOW EFECTS SHALL BE INCORPORATED TO REPRESENT, AMONG OTHER THINGS, THE INFLUENCE OF BARREL WALL TEMPERATURE. FINALLY, THE UNIQUE EFFECTS OF SPECIAL FUELS, INCLUDING METALS, SHALL BE ACCOMODATED IN THE SIMULATION.