par Fitt, A. D.;Kozyreff, Gregory ;Ockendon, John R.
Référence Journal of fluid mechanics, 508, 10, page (165-174)
Publication Publié, 2004
Article révisé par les pairs
Résumé : We consider the steady levitation of a rigid plate on a thin air cushion with prescribed injection velocity. This injection velocity is assumed to be much larger than that in a conventional Prandtl boundary layer, so that inertial effects dominate. After applying the classical 'blowhard' theory of Cole and Aroesty (1968) to the two-dimensional version of the problem, it is shown that in three dimensions the flow may be foliated into streamline surfaces using Lagrangian variables. An example is given of how this may be exploited to solve the three-dimensional problem when the injection pressure distribution is known. © 2004 Cambridge University Press.