Modal analysis of wingtip vortices by means of Proper Orthogonal Decomposition | Zendy

Dufhaus Sebastian | Zendy; Brautmeier Sarina | Zendy; Uhl Anna | Zendy; Hörnschemeyer Ralf | Zendy; Stumpf Eike | Zendy

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Modal analysis of wingtip vortices by means of Proper Orthogonal Decomposition

Author(s) -

Dufhaus Sebastian,

Brautmeier Sarina,

Uhl Anna,

Hörnschemeyer Ralf,

Stumpf Eike

Publication year - 2017

Publication title -

pamm

Language(s) - English

Resource type - Journals

ISSN - 1617-7061

DOI - 10.1002/pamm.201710315

Subject(s) - modal , decomposition , vortex , wingtip device , modal analysis , physics , kármán vortex street , turbulence , field (mathematics) , stability (learning theory) , classical mechanics , wing , aerospace engineering , mechanics , mathematics , engineering , computer science , acoustics , vibration , materials science , chemistry , pure mathematics , organic chemistry , machine learning , reynolds number , polymer chemistry

This paper discusses the influence of different wingtip geometries on the first eigenmodes of wingtip vortices. With the use of Proper Orthogonal Decomposition (POD) of a turbulent velocity field, a modal decomposition of coherent structures, high energetic eigenmodes are determined. Based on the results found by Fabre et al. [1], these eigenmodes may be a key factor for the stability analysis. (© 2017 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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