Burning Rate Studies on the Closed Chamber Combustion of a Fuel Air Propellant.
Memorandum rept. (Final),
BALLISTIC RESEARCH LABS ABERDEEN PROVING GROUND MD
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Closed chamber studies were performed on the combustion of the fuel air propellant JP4 and air. Densities of loading were varied from 0.18 to 0.36 gmcubic centimeters. Equivalence ratios were varied from 0.6 to 2.7 fuel to air. A method for calculating the effective burning rate is presented. It was found that a wide variation in the actual burning rate can be obtained depending, approximately, on the inverse of the fuel air mixing time and, to a lesser extent, on the equivalence ratio. The pressure-time data is used to interpret the pressure rise predicted by an isothermal model, an adiabatic model, a reduced pressure model, and a volumetric model. Comparison of the results demonstrated that the reduced pressure model and the volumetric model offer the best pressure-time correlation. Author Modified Abstract
- Ammunition and Explosives
- Combustion and Ignition