Numerical simulations of the multidimensional, unsteady, erosive hot flow environment in a gun barrel are discussed. Turbulence, gas phase and gas surface thermochemistry, radial flow non-uniformities, and gas-borne particulates are considered in the computational models. Initial conditions include finite turbulence distributions inferred from direct tubulence computations and experiments. The turbulence modeling discussed here is, however,restricted to two-equation closure in conjunction with the time-averaged Navier-Stokes equations. Finite rate and equilibrium gas phase and gas surface chemical kinetics are included in the modeling of the erosion mechanisms active near bare and protectively coated gun tube walls. Particular features suggested by the simulations, including the effects of radial non-uniformities and the coupling of core flow and boundary layer turbulence are summarized. (Stoehr)


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    Title :

    Propellant driven turbulent interior ballistics and wall erosion


    Additional title:

    Numerische Simulation der Stroemungsverhaeltnisse und der Auswirkungen von heissen Pulvergasen in Geschuetzrohren


    Contributors:

    Published in:

    AIAA-Papers ; Jan ; 1-8


    Publication date :

    1979


    Size :

    8 Seiten, 10 Bilder, 12 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English