作者: L. M. Hocking , K. Stewartson , J. T. Stuart , S. N. Brown
DOI: 10.1017/S0022112072001326
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摘要: An infinitesimal centre disturbance is imposed on a fully Ldveloped plane Poiseuille flow at Reynolds number R slightly greater than the critical value Rc for instability. After long time, t, consists of modulated wave whose amplitude A slowly varying function position and time. In an earlier paper (Stewartson & Stuart 1971) parabolic differential equation satisfied by two-dimensional disturbances was found; theory here extended to three dimensions. Although coefficients are coinples, start made elucidating properties its solutions assuming that these real. It then found numerically confirmed analytically that, finite (R-Rc)t, develops infinite peak centre. The possible relevance this work phenomenon transition discussed.