Recently developed 3-D computational models (SCRINT, PARCH, SCHAFT, CRAFT) which analyze high speed propulsive flowfield problems are described. All the models contain generalized thermochemical capabilities and advanced turbulence models, and all integrate the governing equations using implicit/strongly-conservative upwind and/or central difference numerics. The models differ with respect to discretization (finite-difference vs finite-volume), solution formulation (spatial marching parabolized Navier-Stokes (PNS), iterative PNS, time asymptotic full Navier-Stokes (FNS), and time accurate FNS), chemistry coupling (matrix-split/loosely-coupled vs large-matrix/strongly coupled), and geometric/boundary condition flexibility. The hierarchy of propulsive related problems analyzable by these models is described, with specific model formulations found to be most appropriate for specific classes of propulsive flows. Applications to both air-breathing (scramjet/gas-turbine) and rocket propulsive flowfields are described along with thoughts and experiences related to code validation, turbulence modeling, and the development of problem specific, user-friendly codes.


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    Title :

    Advanced Computational Models for Analyzing High Speed Propulsive Flowfields


    Contributors:
    S. M. Dash (author)

    Publication date :

    1990


    Size :

    37 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    ADVANCED COMPUTATIONAL MODELS FOR ANALYZING HIGH SPEED PROPULSIVE FLOWFIELDS

    Dash, S. M. / United States | British Library Conference Proceedings | 1990


    Computation of unsteady nonequilibrium propulsive flowfields

    Munipalli, Ramakanth / Kim, Hyungwon / Anderson, Dale et al. | AIAA | 1997