Accession Number : AD0474645


Title :   A FINITE-DIFFERENCE METHOD SOLUTION OF NON-SIMILAR, EQUILIBRIUM AND NON- EQUILIBRIUM AIR, BOUNDARY LAYER EQUATIONS WITH LAMINAR AND TURBULENT VISCOSITY MODELS. PART 1. ANALYSIS


Descriptive Note : Final technical rept.


Corporate Author : GENERAL APPLIED SCIENCE LABS INC WESTBURY NY


Personal Author(s) : Gould, H E ; Galowin, L S


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/474645.pdf


Report Date : 02 Feb 1965


Pagination or Media Count : 25


Abstract : An analysis is developed for the boundary layer flows, with dissociated and ionized air species in chemical equilibrium or with finite rate chemistry, about general body geometries at zero angle of attack. The partial differential equations for the boundary layer, about axisymmetric and two- dimensional bodies, are transformed to the von Mises stream function coordinate. The resulting equations are reduced to an algebraic system obtained by adopting an explicit finite-difference method of solution. These equations provide the basis for a computer program to obtain numerical solutions. Laminar and several turbulent viscosity models are included in the analysis. Turbulent diffusivity models based upon the law of the wall, law of the wake, a curve-fit to pipe flow eddy viscosity and laminar viscosity contributions are introduced.


Descriptors :   *BOUNDARY LAYER , *REENTRY VEHICLES , AIR , ATMOSPHERE ENTRY , AXISYMMETRIC FLOW , CHEMICAL EQUILIBRIUM , CHEMICAL REACTIONS , COMPUTER PROGRAMMING , DIFFUSION , DISSOCIATION , FLOW FIELDS , GAS IONIZATION , HYPERSONIC FLOW , LAMINAR BOUNDARY LAYER , NONEQUILIBRIUM FLOW , REACTION KINETICS , SERIES(MATHEMATICS) , SHOCK WAVES , THERMODYNAMICS , TRANSPORT PROPERTIES , TURBULENT BOUNDARY LAYER , TWO DIMENSIONAL FLOW , VISCOSITY


Subject Categories : Guided Missile Dynam, Config & Cntrl Surfaces
      Fluid Mechanics
      Unmanned Spacecraft


Distribution Statement : APPROVED FOR PUBLIC RELEASE