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Numerical study on the fluid‐structure interaction in a model aquatic canopy flow
Author(s) -
Meller Richard,
Tschisgale Silvio,
Fröhlich Jochen
Publication year - 2017
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201710231
Subject(s) - reynolds number , flow (mathematics) , vortex , scale (ratio) , mechanics , work (physics) , fluid–structure interaction , computational fluid dynamics , mathematics , geometry , physics , engineering , turbulence , structural engineering , mechanical engineering , finite element method , quantum mechanics
This work presents numerical simulations and selected results of the flow over aquatic canopies, consisting of artificial flexible rectangular blades, arranged in a well‐defined order. The results obtained with three different Reynolds and Cauchy numbers are compared with experimental data achieving good agreement. The considered range of Cauchy numbers represents three different types of canopies ranging from rigid up to highly flexible plants. The transient flow data and blade positions are statistically analyzed to gain deeper understanding of the complex physical processes for this kind of fluid structure interaction. For example, the correlation of role of large scale motion of the flexible blades in conjunction with coherent vortex structures of the flow is addressed. (© 2017 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)