Navier-Stokes solutions for chemical laser flows: steady and unsteady flows

Technical Report · Sun Dec 31 23:00:00 EST 1978

OSTI ID:5684757

Kothari, A P; Jones, E; Anderson, Jr, J D

Time-dependent finite-difference solutions of the two-dimensional Navier-Stokes equations, fully coupled with the appropriate finite-rate chemical kinetic equations, are obtained for HF chemical laser flows. These solutions demonstrate the practicality of Navier-Stokes solutions for chemical laser flows. Results are given for steady flows where large pressure gradients are calculated as a natural part of the Navier-Stokes solutions. In addition, the effect of unsteady fluctuations intentionally introduced at the cavity inlet are studied. Such unsteady mixing increases the laser gain by more than a factor of two.

• Research Organization: Maryland Univ., College Park (USA). Dept. of Aerospace Engineering
• OSTI ID: 5684757
• Report Number(s): AD-A-066791
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
CHEMICAL LASERS
DIFFERENTIAL EQUATIONS
EQUATIONS
FINITE DIFFERENCE METHOD
FLUID FLOW
FLUID MECHANICS
GAIN
HYDROFLUORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
ITERATIVE METHODS
KINETICS
LASER CAVITIES
LASERS
MECHANICS
MIXING
NAVIER-STOKES EQUATION
NUMERICAL SOLUTION
REACTION KINETICS
SUPERSONIC FLOW