Equations written in terms of generalized Riemann variables are presently integrated by inverting six bidiagonal matrices and two tridiagonal matrices, using an implicit Euler solver that is based on the lambda-formulation. The solution is found on a C-grid whose boundaries are very close to the airfoil. The fast solver is then applied to the computation of several flowfields on a NACA 0012 airfoil at various Mach number and alpha values, yielding results that are primarily concerned with transonic flows. The effects of grid fineness and boundary distances are analyzed; the code is found to be robust and accurate, as well as fast.


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    Titel :

    Fast Euler solver for transonic airfoils. I - Theory. II - Applications


    Beteiligte:
    Dadone, Andrea (Autor:in) / Moretti, Gino (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.04.1988



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :



    Fast Euler Solver for Transonic Airfoils Part 11: Applications

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    Optimum Transonic Airfoils Based on the Euler Equations

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    Unsteady transonic flows past airfoils using the Euler equations

    SMITH, GREGORY E. / HASSAN, H. A. / WHITLOW, WOODROW | AIAA | 1987


    Unsteady transonic flows past airfoils using the Euler equations

    Smith, Gregory E. / Hassan, H. A. / Whitlow, Woodrow, Jr. | NTRS | 1987