Viscous subsonic flow computation for wings with flaps for high-lift

Dutt, HNV and Jacob, K (1989) Viscous subsonic flow computation for wings with flaps for high-lift. Technical Report. National Aeronautical Laboratory, Bangalore, India.

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    Abstract

    A computing method for calculation of the subsonic, viscous flow around clean wings of moderate to high aspect ratio and low swep has been extended to analyse wings with deployed high-lift systems, that is,wings with deflected leading and/or trailing edge flaps. The overall method.is an iterative procedure combining a 3-d inviscid lifting surface theorywith a 2-d multi-element airfoil analysis procedure including boundary layer effects and a model for rear separation. Also, the ground effects are included by means of reflected image technique and the final solution is improved using a curved basic flow analysis. In this report the total method is briefly described giving the - salient features of the procedure. The results of numerical studies regarding the convergence of the iterations, and validation of the current method against experi mental results are included along with a discussion about present limitations and possible future work

    Item Type: Proj.Doc/Technical Report (Technical Report)
    Uncontrolled Keywords: High lift;Viscous flow;Trailing edge separation;Ground effect
    Subjects: AERONAUTICS > Aerodynamics
    Division/Department: Experimental Aerodynamics Division, Other
    Depositing User: Deputy Head Poornima Narayana
    Date Deposited: 20 Jul 2006
    Last Modified: 24 May 2010 09:45
    URI: http://nal-ir.nal.res.in/id/eprint/2082

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