Aerodynamics performance of the wing with leading edge strakes

Kanagarajan, V (1977) Aerodynamics performance of the wing with leading edge strakes. Technical Report. National Aeronautical Laboratory, Bangalore, India.

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    Abstract

    Recent experimental studies at NAL and elsewhere have revealed that the performance of a combat aircraft can be improved by the addition of strakes to wing moderated aspect ratio. At high angles of attack, the swept, sharp leading edge strake, produces a spiral at the leading adge and an attached floe behind it. This type of spirally rolled up paper cone vertox induces a wider low pressure region, resulting in increased lift and reduced lift dependent drag. The important strake plane form parameters are strake area ratio, leading adge sweep etc. The approximate estimation of lift for the strake wing agree reasonably well with the experimental data when the vortex noise in the calculation, Strakes have been used on the aerodynamics and northrop aerocrafts and claimed that they have derived considerable performance gains due to the strakes.

    Item Type: Proj.Doc/Technical Report (Technical Report)
    Uncontrolled Keywords: Combat aircraft;Strakes;Cone vortex;Wider low pressure; Aerodynamics
    Subjects: AERONAUTICS > Aerodynamics
    Division/Department: Aerodynamics
    Depositing User: M/S ICAST NAL
    Date Deposited: 13 Sep 2006
    Last Modified: 24 May 2010 09:50
    URI: http://nal-ir.nal.res.in/id/eprint/2686

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