An automated technique for implementing a full Newton method in computational fluid dynamics codes is discussed. Specially constructed MACSYMA programs write efficient error-free FORTRAN codes for computing the entries of the Jacobian matrix associated with Newton's method. Sparse matrix technology, which is both faster and easier to use than conventional banded matrix solvers, is invoked to directly solve the resulting system of equations. This technique for implementing a full Newton method is illustrated by extending the inviscid portion of the successful airfoil code recently developed by Giles and Drela at MIT to handle the multielement case.


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    Titel :

    Application of MACSYMA and sparse matrix technology to multielement airfoil calculations


    Weitere Titelangaben:

    Anwendung der MACSYMA- und Streumatrixtechnik bei Mehrelement-Tragfluegelberechnungen


    Beteiligte:
    Wigton, L.B. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1987


    Format / Umfang :

    14 Seiten, 25 Bilder, 1 Tabelle, 12 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    Improved multielement airfoil analysis

    Brune, G. W. / Manke, J. W. | NTRS | 1980


    Multielement airfoil ice accretion

    Washington, Thomas / Drela, Mark | AIAA | 1995


    User aids for MACSYMA

    Lewis, V. E. | NTRS | 1977


    Differential form analysis using MACSYMA

    Wahlquist, H. D. | NTRS | 1977