* Technical Program Manager † Research Programmer ‡ Visiting Scholar § Research Scientist ¶ Associate Professor of Aeronautical and Astronautical Engineering, University of Illinois at Urbana-Champaign # Postdoctoral Research Associate ** Senior Research Scientist Copyright  2002 by Center for Simulation of Advanced Rockets. Published by the American Institute of Aeronautics and Astronautics, ...

This paper presents a dynamic model of the interior ballistics of an experimental liquid propellant-powered rifle. The liquid propellant-powered rifle described utilizes a mixture of Hydroxyl Ammonium Nitrate (HAN) and hydrocarbon fuel to replace gunpowder typically used in such firearms. The motivation for such a development is to discard the need for a shell casing whereby carrying only prope...

Using heat shield, especially in throat area has a significant effect on combustion chamber pressure and thermal efficiency of solid fuel engines. Precise prediction of the regression of throat area for different pressures, will lead to optimal design of the motors, specifically for those of long burnout times. In this work, erosion of graphite nozzles employed in solid propellant motors with a...

This study is a mathematical model to obtain the characteristics performance of magnesium metal (powder) and carbon on potassium nitrate-sucrose (KNSU) solid propellant formulation. Characterization is, as general rule, important determine its before it can be suitable for use rocket flight or any mission. Method ballistic load cell evaluation was used validate results using combustion exhaust ...

There are several sources for pressure oscillations in solid propellant rocket motors. Oscillatory flow field is one of them. Free shear layers in motor flow field cause vortex shedding. End edges of propellant grains and baffle edge in two-segmented motors are samples of such zones. These vortices move from their forming points and strike the field walls. The kinetic energy of vortices change ...