Estudio de la interacción fluido-estructura en una placa plana en condiciones de acoplamiento unidireccional
[EN] In the present study an analysis about Fluid-Structure Interaction (FSI) is carried out.The geometry is a rectangular flat plate which is attached by one of its sides to a squarecross section bar. This bar is in charge of generating turbulence in the fluid. It is proposedas hypothesis that the...
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| Tipo de recurso: | tesis de maestría |
| Fecha de publicación: | 2019 |
| País: | España |
| Institución: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | español |
| OAI Identifier: | oai:riunet.upv.es:10251/122805 |
| Acceso en línea: | https://riunet.upv.es/handle/10251/122805 |
| Access Level: | acceso abierto |
| Palabra clave: | FSI CFD LES Aeroelasticidad Aerodinámica Resonancia Modos propios Aeroelasticity Aerodynamics Resonance Eigenmodes INGENIERIA AEROESPACIAL Máster Universitario en Ingeniería Aeronáutica-Màster Universitari en Enginyeria Aeronàutica |
| Sumario: | [EN] In the present study an analysis about Fluid-Structure Interaction (FSI) is carried out.The geometry is a rectangular flat plate which is attached by one of its sides to a squarecross section bar. This bar is in charge of generating turbulence in the fluid. It is proposedas hypothesis that the coupling is just monodirectional, which is called asOne Way. Thisimplies the fluid-dynamics and structural calculations to be done separately. StarCCMand Ansys Workbench respectively are used for those calculations.The followed methodology begins by solving the fluid field. To do that it is indispensableto have done previously a domain and mesh independence study for the CFD calculation.Among others, the main result from the fluid field is the temporal evolution of the pressurefield over the plate.After that, in order to have the data in the frequency field, the Fast Fourier Transform(FFT) is applied to that pressure field evolution obtained previously and then it is importedin the finite element software to compute the harmonic response of the flat plate. It is worthmentioning that before this structural calculation a mesh independence study must havebeen done here too.Finally, comparing the harmonic response with the results from a modal calculation of theplate, which provides its natural frequencies, it is possible to discuss the validity of theOne Wayhypothesis proposed previously.After the development of the present project some additional conclusions have beendrawn, such as, the main parameters that govern the problem and their quantitativeinfluence on it, the importance of working with dimensionless numbers which allow togeneralize the solution or last but not least the functioning of the so-calledVortex Sheddingphenomenon and its crucial importance on the structural design of the component. |
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