Accession Number : AD0778079

Title :   Interactions between a Multicomponent Flow and a Laser Beam. Part I. Vaporization of Liquid-Air Droplets by High-Power Laser Beams.

Descriptive Note : Interim rept. 1 Feb-30 Jul 73,

Corporate Author : NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s) : Chien,Kuei-Yuan

Report Date : MAR 1974

Pagination or Media Count : 12

Abstract : The interaction between a high-power laser beam and a moving cloud of vaporizing droplets is considered theoretically. A study was performed to assess partially the feasibility of a new concept of generating an ultra-high-total-enthalpy flow. The spectral absorption coefficient of liquid air was determined at the fundamental vibration-rotation frequencies of liquid nitrogen and oxygen. A perturbation solution was sought for a small arbitrary variation in the velocity of the moving droplets. The first-order correction to uniform-velocity solution has been explicitly carried out in closed form. (Modified author abstract)

Descriptors :   *Drops, *Laser beams, *Vaporization, Two phase flow, Interactions, Dynamics, Feasibility studies, Mathematical models, Perturbation theory, Liquid nitrogen, Liquid oxygen, Theory

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE