The effects of lip thickness on inlet performance are estimated as functions of mass flow for subsonic and supersonic flight speeds. At subsonic speeds, pressure-recovery losses and additive drag are shown to decrease linearly with increasing lip frontal area if the maximum suction force is attained. At supersonic speeds, inlet drag increases linearly with inlet lip frontal area at full mass flow. For reduced mass flow, some reduction in additive drag is possible with lips of moderate thickness, but the magnitude of this reduction becomes negligible as flight speed increases.


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    Title :

    Estimation of Inlet Lip Forces at Subsonic and Supersonic Speeds


    Contributors:

    Publication date :

    1955-06-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English