Afterburner

About: Afterburner is a research topic. Over the lifetime, 811 publications have been published within this topic receiving 5944 citations.

Two regenerative cooling afterburners with sound cavities and application thereof

Abstract: The invention relates to two regenerative cooling afterburners with sound cavities In order to overcome the defects of the existing afterburners and enlarge the application ranges, a straight-groove sound cavity for shock absorption is arranged and an integrated groove-milled connection structure employing kerosene or liquid hydrogen fuel or hydrogen peroxide having a medium concentration within the range of 70-79% as a regenerative cooling agent is adopted so that the reliability of the afterburner can be improved, and the working time, the service life, and the flight height and the speed can be increased A schematic diagram of a related supply system is given in addition to the structures of the afterburners The afterburners are mounted at the rear portion of an aero-gas turbine engine to form a long-augmentation aero-gas turbine engine and a tandem turbo-rocket combined engine The afterburners can be provided for a plurality of high-speed airplanes as power devices, and are particularly applicable to novel supersonic airliners and advanced space tourism aircrafts Besides, the afterburners also can be used as auxiliary winged rocket propulsion and withdrawal engines or low-turbine total temperature gas turbine engines for other purposes

AMA 99-2546 CFD Analysis of the LOX-Augmented Nuclear Thermal Rocket (LANTR)

Abstract: Increased rocket thrust can be achieved through the addition of mass and release of chemical energy in the nozzle of a rocket as in a jet engine afterburner. NASA and Aerojet are investigating the feasibility of injecting gaseous oxygen into the exhaust of a nuclear thermal rocket in order to temporarily increase the thrust of such a rocket. This paper describes CFD simulations of such a concept and the predicted performance of a preliminary design. DEFINITIONS OF SYMBOLS

Method and apparatus for providing jet propelled vehicles with a heat sink

Abstract: Use is made in a jet propelled vehicle of the catalytic reforming of a hydrocarbon with steam and carbon dioxide, as supplied by the exhaust from the afterburner of the jet engine, to generate heat sink capacities of the order of 6,000 BTU per pound of the fuel, e.g., methane, which is combined with the exhaust gases for passage to the reforming zone, or zones, which serve the desired heat sink function. In operation, a portion of the extremely hot exhaust gases from the engine afterburner, which contain steam and carbon dioxide but are as lean as practicable in oxygen, is first quenched by external or internal cooling and then admixed with the hydrocarbon fuel, which provides still further cooling. The resulting gaseous mixture is then passed over a catalyst in a reforming zone which operates endothermally. The gases from this zone are then passed to the aft fan of the engine which propels them into the afterburner for combustion and resulting thrust augmentation. The heat sink provided by the reforming zone can be utilized to take up heat from any desired points in the vehicle including the engine, wing surfaces, or the like, using direct or indirect methods of heat exchange.

Slant type taper profiling and prediction of profiling speed for a circular profile during in wire electric discharge machining using Hastelloy-X:

Abstract: Hastelloy-X a nickel-based alloy used in nozzles, flame holders, turbine blades, turbocharges, jet engine tailpipes, afterburner components etc having complex tapering profiles Wire electric disc