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  5. Experimental PIV/V3V measurements of vortex-induced fluid-structure interaction in turbulent flow-A new benchmark FSI-PfS-2a
 
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Experimental PIV/V3V measurements of vortex-induced fluid-structure interaction in turbulent flow-A new benchmark FSI-PfS-2a

Publication date
2013-10
Document type
Research article
Author
Kalmbach, Andreas
Breuer, Michael 
Organisational unit
Strömungsmechanik 
DOI
10.1016/j.jfluidstructs.2013.07.004
URI
https://openhsu.ub.hsu-hh.de/handle/10.24405/8919
Scopus ID
2-s2.0-84885323499
ISSN
0889-9746
Series or journal
Journal of Fluids and Structures
Periodical volume
42
Periodical issue
1
First page
369
Last page
387
Peer-reviewed
✅
Part of the university bibliography
✅
  • Additional Information
Abstract
The investigation of the bidirectional coupling between a fluid flow and a structure motion is a growing branch of research in science and industry. Applications of the so-called fluid-structure interactions (FSI) are widespread. To improve coupled numerical FSI simulations, generic experimental benchmark studies of the fluid and the structure are necessary. In this work, the coupling of a vortex-induced periodic deformation of a flexible structure mounted behind a rigid cylinder and a fully turbulent water flow performed at a Reynolds number of Re=30. 470 is experimentally investigated with a planar particle image velocimetry (PIV) and a volumetric three-component velocimetry (V3V) system. To determine the structure displacements a multiple-point laser triangulation sensor is used. The three-dimensional fluid velocity results show shedding vortices behind the structure, which reaches the second swiveling mode with a frequency of about 11.2. Hz corresponding to a Strouhal number of St=0.177. Providing phase-averaged flow and structure measurements precise experimental data for coupled computational fluid dynamics (CFD) and computational structure dynamics (CSD) validations are available for this new benchmark case denoted FSI-PfS-2a. The test case possesses four main advantages: (i) the geometry is rather simple; (ii) kinematically, the rotation of the front cylinder is avoided; (iii) the boundary conditions are well defined; (iv) nevertheless, the resulting flow features and structure displacements are challenging from the computational point of view. In addition to the flow field and displacement data a PIV-based force calculation method is used to estimate the lift and drag coefficients of the moving structure. © 2013 Elsevier Ltd.
Cite as
In: Journal of fluids and structures. - London : Acad. Press, 1987- ; ZDB-ID: 56997-5 . - Bd. 42.2013, 1, Seite 369-387
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