Flow past a plate with elliptic leading edge: layer response to free-stream vorticity

Authors: Schrader, L.-U., Brandt, L.B., Mavriplis, C, Henningson, D.S.H.
Document Type: Conference
Pubstate: Published
Journal: Proceedings of the Seventh IUTAM Symposium on Laminar-Turbulent Transition, Stockholm, Sweden, 2009
Volume:    565-568
Year: 2009


We show the response of the boundary-layer flow past a wing to free-stream disturbances with axial, vertical and spanwise vorticity and explain the associated receptivity mechanisms. A flat plate with elliptic leading edge serves as wing model, and the vortical free-stream disturbances are modeled by space and time periodic Fourier modes. The results are extracted from solutions to the incompressible Navier-Stokes equations computed with the Spectral Element Method.