Abstract
A computational study examining the effects of varying inflow disturbance conditions on spatially evolving channel flow instability is presented. The inflow conditions consist of a 2-D perturbation wave coupled with a 3-D random noise field. The 2-D amplitude is varied in order to examine the resulting transition characteristics of the channel. At low 2-D amplitudes (A2d = 1.25%) H-type or subharmonic characteristics dominate while at higher amplitudes (A2d = 2.5% and 3.25%) mixed H-and K-type instabilities occur.
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© 1992 Springer-Verlag New York, Inc.
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Saiki, E.M., Biringen, S. (1992). Effects of Inflow Disturbances on Spatially-Evolving Instability in Plane Channel Flow. In: Hussaini, M.Y., Kumar, A., Streett, C.L. (eds) Instability, Transition, and Turbulence. ICASE NASA LaRC Series. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-2956-8_26
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DOI: https://doi.org/10.1007/978-1-4612-2956-8_26
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