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dc.contributor.authorFalcovitz, Joseph
dc.date1987-03
dc.date.accessioned2013-03-07T21:54:43Z
dc.date.available2013-03-07T21:54:43Z
dc.date.issued1987-03
dc.identifier.urihttp://hdl.handle.net/10945/30258
dc.description.abstractTransient diffuser flow in an HF/DF laser is analyzed via a simplified model. A radial laser configuration is assumed where the diffuser is idealized as a ring-symmetric channel of uniform width. The outward radial flow following an abrupt start-up of diffuser inflow is computed numerically using a GRP-type code for integrating the Euler equations, which include an ongoing reaction of hydrogen recombination. A new kinetic scattering effect is suggested, resulting from the recoil of an HF or DF molecule assisting as third body in the hydrogen recombination reaction. The main conclusion is that transient diffuser plume flow effects do not drastically aggravate the potential for contaminating backflow (HF + DF) caused by either thermal or kinetic backscattering. Keywords: Laser exhaust; Spacecraft contamination; Chemical laser; Exhaust plume, Hydrogen recombination; Transient flowen_US
dc.description.sponsorshipPrepared for: Strategic Defense Initiatve Office The Pentagon, Washington, DCen_US
dc.description.urihttp://archive.org/details/transientreactiv00falc
dc.language.isoeng
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, may not be copyrighted.en_US
dc.subject.lcshCHEMICAL LASERS.en_US
dc.titleTransient reactive exhaust flow from a ring-symmetric HF/DF space laseren_US
dc.typeTechnical Reporten_US
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.subject.authorLaser Exhausten_US
dc.subject.authorSpacecraft Contaminationen_US
dc.subject.authorChemical Laseren_US
dc.subject.authorExhaust Plumeen_US
dc.subject.authorHydrogen Recombinationen_US
dc.subject.authorTransient Flowen_US
dc.identifier.npsreportNPS72-87-002CR


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