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dc.contributor.authorFontanals García, Alfred
dc.contributor.authorGuardo Zabaleta, Alfredo de Jesús
dc.contributor.authorCoussirat Núñez, Miguel Gustavo
dc.contributor.authorEgusquiza Estévez, Eduard
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Mecànica de Fluids
dc.contributor.otherEscola Universitària d'Enginyeria Tècnica Industrial de Barcelona
dc.date.accessioned2011-11-14T16:03:43Z
dc.date.available2011-11-14T16:03:43Z
dc.date.created2011
dc.date.issued2011
dc.identifier.citationFontanals, A. [et al.]. Numerical study of the fluid-structure interaction in the diffuser passage of a centrifugal pump. A: International Conference on Computational Methods for Coupled Problems in Science and Engineering. "IV International Conference on Computational Methods for Coupled Problems in Science and Engineering". Kos: Centro Internacional de Métodos Numéricos en Ingeniería (CIMNE), 2011, p. 1-10.
dc.identifier.isbn978-84-87867-59-0
dc.identifier.urihttp://hdl.handle.net/2117/13881
dc.description.abstractReliable design of turbomachinery is a complex task. In order to gain overall efficiency in the machine performance, designers may have to reduce the gap between the impeller and the diffuser, forcing them to be as closely spaced as possible. In these situations, there may be a strong interaction between them that influences both the aerodynamics and the structural performance of blades and vanes. This phenomenon is called rotor-stator interaction (RSI), and it has a strong influence on the machine behavior. These interactions can have a significant impact on the vibrational and acoustical characteristics of the machine. Sometimes, this interaction has led to blade or vane failure. Unsteadiness and turbulence play a fundamental role in RSI, and the use of computational fluid dynamics (CFD) is becoming a usual requirement in turbomachinery design due to the difficulties and elevated cost of the experimentation required to identify RSI phenomena. Nowadays, a CFD analysis based on Reynolds–averaged Navier–Stokes equations (RANS) and a coupled eddy viscosity turbulence model (EVM) is commonly applied in turbomachinery design. Therefore, the choice of an appropriate turbulence model and the boundary layer treatment is far from trivial, and a suitable turbulence modeling plays an important role for successful CFD results.In this work, an entire stage of a diffuser pump was modeled by means of a commercial CFD code in order to study the pressure fluctuations due to the interaction between the impeller and the diffuser of the pump. The obtained numerical results were compared against the experimental results of Tsukamoto et al.,. Full RANS equations coupled with several EVM were solved for a diffuser pump stage in order to establish the most accurate modeling strategy for a diffuser pump. Boundary layer sensitivity tests were performed, and numerical discretization influence on results was also tested and established. Frequencies of the pressure fluctuations in the diffuser passage are also obtained with several EVM and compared against experimental results.
dc.format.extent10 p.
dc.language.isoeng
dc.publisherCentro Internacional de Métodos Numéricos en Ingeniería (CIMNE)
dc.subjectÀrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
dc.subject.lcshFluid-structure interaction
dc.subject.lcshCentrifugal pumps
dc.titleNumerical study of the fluid-structure interaction in the diffuser passage of a centrifugal pump
dc.typeConference report
dc.subject.lemacMecànica de fluids -- Mètodes numèrics
dc.subject.lemacBombes centrífugues
dc.contributor.groupUniversitat Politècnica de Catalunya. FLUIDS - Enginyeria de Fluids
dc.identifier.dlB-22987-2011
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
drac.iddocument5803858
dc.description.versionPostprint (published version)
upcommons.citation.authorFontanals, A.; Guardo, A.; Coussirat, M.; Egusquiza, E.
upcommons.citation.contributorInternational Conference on Computational Methods for Coupled Problems in Science and Engineering
upcommons.citation.pubplaceKos
upcommons.citation.publishedtrue
upcommons.citation.publicationNameIV International Conference on Computational Methods for Coupled Problems in Science and Engineering
upcommons.citation.startingPage1
upcommons.citation.endingPage10


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