Algebraic growth in a Blasius boundary layer: Nonlinear optimal disturbances

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Algebraic growth in a Blasius boundary layer: Nonlinear optimal disturbances

The three-dimensional, algebraically growing instability of a Blasius boundary layer is studied in the nonlinear regime, employing a nonparallel model based on boundary layer scalings. Adjoint-based optimization is used to determine the “optimal” steady leading-edge excitation that provides the maximum energy growth for a given initial energy. Like in the linear case, the largest transient grow...

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ژورنال

عنوان ژورنال: European Journal of Mechanics - B/Fluids

سال: 2006

ISSN: 0997-7546

DOI: 10.1016/j.euromechflu.2005.07.001