Accession Number : ADD011112
Title : Expendable Infrared Source and Method Therefor.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Hodgkins,H L ; Reingruber,J K ; Harwell,K E
Report Date : 05 Jun 1984
Pagination or Media Count : 5
Abstract : This abstract discloses an IR source and method for generating IR radiation whereby a propellant is burned in a first chamber to produce a product gas which is exited through a critical exit. The gas is accelerated to a supersonic velocity by expanding into a second chamber, is passed through a standing shock wave in the chamber to reduce the gas velocity to a subsonic level, is exited through radial orifices into a larger third chamber were the gas is mixed to obtain a substantial uniformity in temperature and specie. The gas is then accelerated by expansion to a chosen subsonic velocity, and is exhausted to the atmosphere.
Descriptors : *Patents, *Infrared radiation, *Propellants, *Combustion, Sources, Gases, Excitation, Acceleration, Supersonic flow, Reduction, Combustion chambers, Shock waves, Subsonic flow, Mixing, Exhaust gases, Radiant intensity, Rocket nozzles, Combustion products, Burning rate, Methodology
Subject Categories : Optics
Combustion and Ignition
Distribution Statement : APPROVED FOR PUBLIC RELEASE