Physical analysis and second-order modelling of an unsteady turbulent flow - The oscillating boundary layer on a flat plateThe turbulent boundary layer under a freestream whose velocity varies sinusoidally in time around a zero mean is computed using two second order turbulence closure models. The time or phase dependent behavior of the Reynolds stresses are analyzed and results are compared to those of a previous SPALART-BALDWIN direct simulation. Comparisons show that the second order modeling is quite satisfactory for almost all phase angles, except in the relaminarization period where the computations lead to a relatively high wall shear stress.
Document ID
19900048168
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Ha Minh, H. (Ecole Nationale Superieure d'Electrotechnique, d'Electronique, d'Informatique et d'Hydraulique Toulouse, France)
Viegas, J. R. (Ecole Nationale Superieure d'Electronique d'Informatique et d'Hydraulique Toulouse, France)
Rubesin, M. W. (Ecole Nationale Superieure d'Electronique d'Informatique et d'Hydraulique Toulouse, France)
Spalart, P. (NASA Ames Research Center Moffett Field, CA, United States)
Vandromme, D. D. (Rouen Institut National des Sciences Appliquees, Mont-Saint-Aignan, France)