Flow in the vicinity of the trailing edge of Joukowski-type profiles


Turkyilmazoglu M.

PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, cilt.458, ss.1653-1672, 2002 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 458 Konu: 2023
  • Basım Tarihi: 2002
  • Doi Numarası: 10.1098/rspa.2001.0942
  • Dergi Adı: PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
  • Sayfa Sayıları: ss.1653-1672

Özet

The asymptotic theory of flow separation is used to derive the interactive boundary-layer equations governing the flow motion in the vicinity of the trailing edge of thin aerofoil shapes, whose trailing edge is represented in the form y = alpha(-x)(m). The onset of the separation phenomenon is investigated and a criterion for the occurrence of separation is established. The governing nonlinear interaction equations are then solved numerically and the results of the separated regions corresponding to various parameters m and alpha are plotted. The analysis carried out over the interaction region of the trailing edge shows that flow separation always takes place beyond a critical value of alpha under the action of a self-induced pressure gradient. The critical value is found to be almost coincident for each m with the one associated with the wedged trailing edge.