Abstract
Laminar-turbulent transition induced by a harmonic point source disturbance in a flat-plate boundary layer with adverse pressure gradient is investigated by spatial Direct Numerical Simulation (DNS) based on the complete three-dimensional Navier—Stokes equations for incompressible flow. A local disturbance is introduced into the two-dimensional (2-D) base flow at the wall by a harmonic point source. Thus Tollmien—Schlichting waves of a single frequency and a large number of obliqueness angles are stimulated and propagate downstream simultaneously, undergoing amplification by primary and subsequent instabilities, and eventually lead to breakdown of the laminar flow. The development of the wave train in the boundary layer is investigated by the spectral amplitude evolution and the vorticity/shearlayer dynamics. The computational aspects of this LAMTUR project are discussed in detail for runs on the NEC SX-4 and the CRAY T3E supercomputers.
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References
L. Kleiser, T. Zang, Numerical simulation of transition in wall-bounded shear flows. Ann. Rev. Fluid Mechanics, 23,495–537, 1991.
M. Kloker and H. Fasel, Direct numerical simulation of boundary-layer transition with strong adverse pressure gradient. In R. Kobayashi (ed.), Laminar-Turbulent Transition,IUTAM-Symposium, Sendai, Japan, pp. 481–488. Springer, Berlin, Heidelberg, 1995.
C. Stemmer, M. Kloker and S. Wagner, DNS of harmonic point source disturbances in an airfoil boundary-layer flow. AIAA-98–2436, 29th AIAA Fluid Dynamics Conference, Albuquerque, New Mexico.
J. Suttan, M. Baumann, S. Fiihling, P. Erb, S. Becker and C. Stemmer, In-flight research on boundary layer transition - works of the DFG-University Research Group. In H. Körner and R. Hilbig (eds.), Notes on Numerical Fluid Mechanics, vol. 60, pp. 343–350. Vieweg Verlag, 1997, 10th Stab Symposium 96, Braunschweig.
M. Kloker, U. Konzelmann and H. Fasel, Outflow boundary conditions for Spatial Navier-Stokes Simulations of Transition Boundary Layers. AIAA J., 31, 620–628, 1993.
U. Rist and H. Fasel, Direct numerical simulation of controlled transition in a flat-plate boundary layer. J. Fluid Mech.,298, 211–248, 1995.
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© 1999 Springer-Verlag Berlin Heidelberg
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Stemmer, C., Kloker, M., Rist, U., Wagner, S. (1999). DNS of Point-Source Induced Transition in an Airfoil Boundary-Layer Flow. In: Krause, E., Jäger, W. (eds) High Performance Computing in Science and Engineering ’98. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-58600-2_23
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DOI: https://doi.org/10.1007/978-3-642-58600-2_23
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