Numerical study of the vortex generated in a bass-reflex port of a loudspeaker

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dc.audience.degreeGRAU EN ENGINYERIA EN TECNOLOGIES AEROESPACIALS (Pla 2010)
dc.audience.educationlevelGrau
dc.audience.mediatorEscola Tècnica Superior d'Enginyeries Industrial i Aeronàutica de Terrassa
dc.contributorCastilla López, Roberto
dc.contributorGámez Montero, Pedro Javier
dc.contributor.authorGarcía Alcaide, Victor Manuel
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Mecànica de Fluids
dc.date.accessioned2020-05-14T09:29:42Z
dc.date.issued2015-06
dc.date.updated2019-10-24T08:23:06Z
dc.descriptionThe main objective is to numerically find and measure the vortex generated in the bass-reflex port of a loudspeaker. A secondary flow will be to perform a signal analysis of the measurement in order to characterize the aerodynamic sound generated  
dc.description.abstractA bass-reflex port is an open pipe that connect the volume of the loudspeaker with the surrounding environment. Its role is to accentuate the low frequency range of sound. For some geometries a vortex shedding can be generated, which causes aerodynamic noise that can interference with the loudspeaker sound. The student will perform a numerical simulation, with an open source CFD (Computational Fluid Dynamic) package, of the flow in the bass-reflex port, in order to reproduce the vortex shedding. The main tasks will be:- Theoretical study of the vortex shedding in  a pipe- Choose the best solver for the flow simulation and learn how to use it- Generation of geometry and mesh- Simulation running- Mesh convergence study- Results analisis
dc.identifier.slug205-332
dc.identifier.urihttps://hdl.handle.net/2117/187477
dc.language.isoeng
dc.publisherUniversitat Politècnica de Catalunya
dc.rights.accessRestricted access - author's decision
dc.subjectÀrees temàtiques de la UPC::Enginyeria mecànica
dc.subject.lcshVortex-motion
dc.subject.lcshLoudspeakers
dc.subject.lemacVorticitat
dc.subject.lemacAltaveus
dc.titleNumerical study of the vortex generated in a bass-reflex port of a loudspeaker
dc.typeBachelor thesis
dspace.entity.typePublication

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Grau en Enginyeria en Tecnologies Aeroespacials (Pla 2010)