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Lock-in and drag amplification effects in slender line-like structures through CFD
dc.contributor.author | Vasallo Belver, Alí |
dc.contributor.author | Lorenzana Iban, Antolin |
dc.contributor.author | Rossi, Riccardo |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Resistència de Materials i Estructures a l'Enginyeria |
dc.date.accessioned | 2012-05-11T18:02:20Z |
dc.date.created | 2012-05 |
dc.date.issued | 2012-05 |
dc.identifier.citation | Vasallo , A.; Lorenzana, A.; Rossi, R. Lock-in and drag amplification effects in slender line-like structures through CFD. "Wind and structures", Maig 2012, vol. 15, núm. 3, p. 189-208. |
dc.identifier.issn | 1226-6116 |
dc.identifier.uri | http://hdl.handle.net/2117/15836 |
dc.description.abstract | Lock-in and drag amplification phenomena are studied for a flexible cantilever using a simplified fluid-structure interaction approach. Instead of solving the 3D domain, a simplified setup is devised, in which 2D flow problems are solved on a number of planes parallel to the wind direction and transversal to the structure. On such planes, the incompressible Navier-Stokes equations are solved to estimate the fluid action at different positions of the line-like structure. The fluid flow on each plane is coupled with the structural deformation at the corresponding position, affecting the dynamic behaviour of the system. An Arbitrary Lagrangian-Eulerian (ALE) approach is used to take in account the deformation of the domain, and a fractional-step scheme is used to solve the fluid field. The stabilization of incompressibility and convection is achieved through orthogonal quasi-static subscales, an approach that is believed to provide a first step towards turbulence modelling. In order to model the structural problem, a special one-dimensional element for thin walled cross-section beam is implemented. The standard secondorder Bossak method is used for the time integration of the structural problem. |
dc.format.extent | 20 p. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures |
dc.subject.lcsh | Computational fluid dynamics |
dc.subject.lcsh | Fluid-structure interaction--Mathematical models |
dc.subject.other | fluid-structure interaction |
dc.subject.other | vortex-induced vibrations |
dc.subject.other | slender line-like structures |
dc.subject.other | lock-in |
dc.subject.other | drag coefficient amplification |
dc.title | Lock-in and drag amplification effects in slender line-like structures through CFD |
dc.type | Article |
dc.subject.lemac | Dinàmica de fluids -- Mètodes numèrics |
dc.relation.publisherversion | http://technopress.kaist.ac.kr/?page=container&journal=was&volume=15&num=3# |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 10291451 |
dc.description.version | Postprint (published version) |
dc.date.lift | 10000-01-01 |
local.citation.author | Vasallo , A.; Lorenzana, A.; Rossi, R. |
local.citation.publicationName | Wind and structures |
local.citation.volume | 15 |
local.citation.number | 3 |
local.citation.startingPage | 189 |
local.citation.endingPage | 208 |
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