The purpose of this section is to survey the present status of scientific knowledge of the causes which produce drag, in order, if possible, to establish the relation between the individual results and the actual phenomena which demonstrate the fundamental importance of surface conditions. A discussion of the boundary layer is followed by: relations between frictional and form drag, application to profile-drag measurements, and different kinds of roughness. High-pressure wind tunnel tests are discussed along with roughness and maximum lift.


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    Title :

    Measurement of profile drag on an airplane in flight by the momentum method. Part II


    Contributors:

    Publication date :

    1930-03-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English







    Airplane drag

    Torpfer, C. | Engineering Index Backfile | 1929