Papers Published

  1. Widnall, S.E. and Dowell, E.H., Aerodynamic forces on oscillating cylindrical duct with internal flow, Journal of Sound and Vibration, vol. 6 no. 1 (1967), pp. 71 - 85 [0022-460X(67)90159-9] .
    (last updated on 2007/04/10)

    Abstract:
    Method is developed to compute generalized aerodynamic forces on harmonically osciallating cylindrical duct with supersonic internal flow within framework of linearized, potential flow theory; quantitative results are shown in sufficient number to demonstrate nature of aerodynamic forces and various limiting cases are identified where aerodynamic forces take on simpler form; most useful of these limiting cases appears to be "slender body" limit; generalizations of solution are discussed to include effects of subsonic flow and nonconstant cross-section.

    Keywords:
    Ducts;