Abstract
Nonlinear, compressible parabolized stability equations (PSE) are used to study the transition process in a Mach 1.6 flat plate boundary layer. It is shown that two oblique first-mode waves interacting among themselves could lead to transition for very small initial amplitudes. Nonlinear interaction of the first mode waves leads to the formation of a streamwise vortex and the associated mean flow alteration results in the spanwise regions of positive and negative shear (unsteady) during the breakdown stage. The location of transition (the rise of the mean wall shear above the laminar value) is computed for different initial amplitudes of the first mode waves.
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© 1992 Springer-Verlag New York, Inc.
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Chang, CL., Malik, M.R. (1992). Oblique Mode Breakdown in a Supersonic Boundary Layer Using Nonlinear PSE. 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_22
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DOI: https://doi.org/10.1007/978-1-4612-2956-8_22
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