Abstract
From the data of a direct numerical simulation the three-dimensional coherent structures of an incompressible, spatially evolving flat-plate boundary layer have been calculated using the POD method. By Gaierkin projection of the Navier-Stokes equations onto the corresponding system of eigenfunctions then a low-dimensional model of the flow in the form of a system of ODE’s has been derived. In a region of the boundary layer just beyond the spike stages of transition this system displays deterministic chaos that has been quantified by determining its Lyapunov exponents.
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© 1993 Springer Science+Business Media Dordrecht
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Rempfer, D., Fasel, H. (1993). The Dynamics of Coherent Structures in a Flat-Plate Boundary Layer. In: Nieuwstadt, F.T.M. (eds) Advances in Turbulence IV. Fluid Mechanics and its Applications, vol 18. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1689-3_13
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DOI: https://doi.org/10.1007/978-94-011-1689-3_13
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