Based on an optimization formulation, a procedure has been developed to evaluate Mach number and angle-of-attack corrections. The Euler equations are assumed to be the flow governing equations. To obtain efficient solutions for the optimization problem, the iterative solutions for the flow variables and the design parameters are simultaneously updated. In addition to the model lift and geometry, the procedure requires pressure measurements near the tunnel walls. The tunnel boundary conditions are based on the introduction of Reimann invariants for a one-dimensional flow normal to the boundary. Computations are performed to verify that the errors introduced by this approximate boundary-condition formulation are acceptably small. The correction scheme is applied to an aircraft configuration in an open jet. The results indicate that the optimization scheme is highly efficient with the rate of convergence of the flow solution nearly equal to the corresponding rate of a regular analysis problem.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Euler procedure for three-dimensional transonic wall interference


    Contributors:

    Published in:

    Publication date :

    1989-01-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English


    Keywords :


    Euler procedure for three-dimensional transonic wall interference

    RIZK, MAGDI H. / LOVELL, DONALD R. / BAKER, TIMOTHY J. | AIAA | 1989


    Euler procedure for correcting two-dimensional transonic wind-tunnel wall interference

    Rizk, Magdi H. / Lovell, Donald R. / Baker, Timothy J. | NTRS | 1988


    Euler procedure for correcting two-dimensional transonic wind-tunnel wall interference

    Rizk, M.H. / Lovell, D.R. / Baker, T.J. | Tema Archive | 1988


    Euler procedure for correcting two-dimensional transonic wind-tunnelwall interference

    RIZK, MAGDI H. / LOVELL, DONALD R. / BAKER, TIMOTHY J. | AIAA | 1988