NASA Technical Reports Server (NASA) · 1959 · 13 citations · 0 references
EngineeringAerospace EngineeringMechanical EngineeringAerodynamicsCombustionHeat TransferAerodynamic TestingCombustion FundamentalsExperimental AerodynamicsExternal AerodynamicsSupersonic AerodynamicsWing AerodynamicsCombustion CharacteristicsCombustion Pressure EffectsLift-drag BalanceLift-to-drag RatioMach NumberStatic PressureSupersonic CombustionSupersonic Wing Aerodynamics
Pressure distributions associated with stable combustion of aluminum borohydride in the airstream adjacent to the lower surface of a 13-inch chord, two-dimensional, blunt-base wing were determined experimentally. The measurements were made with the wing at 20 angle of attack in a 1- by 1-foot tunnel at Mach numbers of 2.47 and 2.96. Static-pressure increases along the lower surface and base caused by the combustion are presented along with the resultant lift increases. The lift-drag ratio of the wing was nearly doubled by the addition of heat. The experimental values of lift during heat addition agree with those predicted by analytical calculations.