Accession Number : AD0774942

Title :   Mixing and Reaction in High Speed H2-F2-Diluent Flows for Use with Supersonic Pulsed HF Lasers.

Corporate Author : BOEING AEROSPACE CO KENT WASH LASER PHYSICS LAB

Personal Author(s) : Thayer,William J. , III ; McClure,J. Doyle

Report Date : AUG 1973

Pagination or Media Count : 113

Abstract : Rationale for supersonic pulsed chemical lasers and problem areas related to design and use of associated reagent premixers are described. An analytical model of reagent mixing and reaction for evaluation of 'prereaction' and mixing characteristics of high enthalpy H2-F2-diluent flows is formulated and programmed for computer solution. The code is used to evaluate parametric dependence of prereaction level and required mixing length on principal parameters defining candidate premixer flows. Possible flow choking and subsequent detonation in the mixing region resulting from reacting flow transients following a fast laser-reaction pulse are examined, both by defining conditions under which choking by chemical heat addition and/or Chapman-Jouguet detonations are energetically allowed, and by using a simplified reacting flow model to estimate kinetic limitations on probable occurrence of such disturbances. (Modified author abstract)

Descriptors :   *Chemical lasers, *Supersonic flow, *Mixing, Chain reactions, Hydrogen, Fluorine, Gas flow, Mathematical models, Turbulence

Subject Categories : Physical Chemistry
      Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE