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Descripción
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| The nonlinear streamwise growth of a spanwise periodic array of steady streaks in a flat plate boundary layer is numerically computed using the well known Reduced Navier-Stokes formulation. It is found that the flow configuration changes substantially when the amplitude of the streaks grows and the nonlinear effects come into play. The transversal motion (in the wall normal-spanwise plane), which is normally not considered, becomes non-negligible in the nonlinear regime, and it strongly distorts the streamwise velocity profiles, which end up being quite different from those predicted by the linear theory. We analyze in detail the resulting flow patterns for the nonlinearly saturated streaks, and compare them with available experimental results. | |
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Internacional
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JCR del ISI
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No |
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Título de la revista
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AIAA Meeting papers |
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ISSN
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978-1-60086-933-4 |
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Factor de impacto JCR
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Información de impacto
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Volumen
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DOI
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10.2514/6.2012-3272 |
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Número de revista
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