Leading-edge effects on boundary-layer receptivityNumerical calculations are presented for the incompressible flow over a parabolic cylinder. The computational domain extends from a region upstream of the body downstream to the region where the Blasius boundary-layer solution holds. A steady mean flow solution is computed and the results for the scaled surface vorticity, surface pressure and displacement thickness are compared to previous studies. The unsteady problem is then formulated as a perturbation solution starting with and evolving from the mean flow. The response to irrotational time harmonic pulsation of the free-stream is examined. Results for the initial development of the velocity profile and displacement thickness are presented. These calculations will be extended to later times to investigate the initiation of instability waves within the boundary-layer.
Document ID
19930062817
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Gatski, Thomas B. (NASA Langley Research Center Hampton, VA, United States)
Kerschen, Edward J. (Arizona Univ. Tucson, United States)
Date Acquired
August 16, 2013
Publication Date
July 1, 1990
Subject Category
Fluid Mechanics And Heat Transfer
Meeting Information
Meeting: International Conference on Numerical Methods in Fluid Dynamics