Nonequilibrium dissociation of diatomic molecules in a boundary layer

Journal Article · Mon Jul 01 04:00:00 EDT 1985 · Fluid Dyn. (Engl. Transl.); (United States)

OSTI ID:5915931

Makashev, N K; Provotorov, V P

A study is made of the influence of the process of diffusion of diatomic molecules on the rate of their thermal dissociation. On the basis of the ladder model of the dissociation of molecules - truncated harmonic oscillators - an expression is obtained for the macroscopic reaction rate which depends explicitly and exponentially on the square of the gradient of the gas temperature. The molecules constitute a small admixture in a monatomic inert gas. The effect of the diffusion on the rate of dissociation is illustrated by the results of numerical calculation of the flow in the boundary layer around the stagnation point of a blunt body.

• OSTI ID: 5915931
• Journal Information: Fluid Dyn. (Engl. Transl.); (United States), Journal Name: Fluid Dyn. (Engl. Transl.); (United States) Vol. 20:1; ISSN FLDYA
• Country of Publication: United States
• Language: English

Related Subjects

656003* -- Condensed Matter Physics-- Interactions between Beams & Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AERODYNAMICS
ARGON
BOLTZMANN EQUATION
BOUNDARY LAYERS
COLLISIONS
DIFFERENTIAL EQUATIONS
DIFFUSION
DISSOCIATION
ELECTROMAGNETIC RADIATION
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EQUATIONS
EQUILIBRIUM
EXCITATION
EXCITED STATES
FLUID FLOW
FLUID MECHANICS
FLUIDS
GAS FLOW
GASES
HARMONIC OSCILLATOR MODELS
LASER MATERIALS
LASER RADIATION
LAYERS
MATERIALS
MATHEMATICAL MODELS
MECHANICS
MOLECULE COLLISIONS
MOLECULES
NITROGEN
NONMETALS
PARTIAL DIFFERENTIAL EQUATIONS
PHOTON COLLISIONS
PHOTON-MOLECULE COLLISIONS
POPULATION INVERSION
RADIATIONS
RARE GASES
ROTATIONAL STATES
TEMPERATURE DEPENDENCE
THERMAL DIFFUSION
TRANSPORT THEORY
VIBRATIONAL STATES