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Dynamics of flow near a separation point
Author(s) -
Uruba V.,
Knob M.
Publication year - 2008
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200810021
Subject(s) - boundary layer , separation (statistics) , flow (mathematics) , flow separation , adverse pressure gradient , dynamical systems theory , pressure gradient , boundary (topology) , simple (philosophy) , dynamics (music) , mechanics , point (geometry) , dynamical system (definition) , layer (electronics) , lagrangian coherent structures , decomposition , physics , statistical physics , mathematical analysis , materials science , geometry , mathematics , nanotechnology , chemistry , acoustics , turbulence , philosophy , statistics , epistemology , quantum mechanics , organic chemistry
Dynamical behavior of a boundary layer separation is studied using the experimental approach. The dynamical nature of the phenomenon is demonstrated on a simple case of a flat–plate boundary layer in adverse pressure gradient. The Time–Resolved PIV technique was utilized for monitoring instantaneous structure of the separation region and its time development. Distinctive coherent structures and their dynamical behavior were identified using the Proper Orthogonal Decomposition method. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)