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dc.contributorVentosa Molina, Jordi
dc.contributor.authorAhmed Salam, Zobaer
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics
dc.date.accessioned2023-11-17T09:28:15Z
dc.date.available2023-11-17T09:28:15Z
dc.date.issued2023-07-20
dc.identifier.urihttp://hdl.handle.net/2117/396593
dc.description.abstractThe present study explores the feasibility of using the GEKO turbulence model in Ansys Fluent software to analyze secondary flow losses in turbomachinery compressors. This turbulence model includes free parameters that can be adjusted to enhance simulation accuracy. The model was calibrated to match reference data obtained from a Large Eddy Simulation (LES), by focusing on two dimensional simulations at the midspan of the compressor blade. Subsequently, the obtained calibrated values were used to perform three dimensional simulations. The calibrated GEKO model showed similar results to the default GEKO model, indicating limited improvement. However, both GEKO models outperformed the standard k − ω model in predicting pressure losses. Vortical structures, such as the tip leakage vortex, were captured by all simulations. The positioning of the vortex in the GEKO simulations was consistent with the reference data. However, the k −ω model showed displacements with respect to the LES simulation. These findings highlight the potential of the GEKO model for practical applications in turbomachinery compressor analysis.
dc.language.isoeng
dc.publisherUniversitat Politècnica de Catalunya
dc.rightsAttribution-NonCommercial 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.subjectÀrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
dc.subject.lcshComputational fluid dynamics
dc.subject.lcshTurbulence
dc.subject.lcshANSYS (Computer system)
dc.subject.lcshTurbochargers
dc.subject.otherCFD
dc.subject.otherRANS
dc.subject.otherTurbomachinery
dc.subject.otherCompressor cascade
dc.subject.otherSecondary flows
dc.subject.otherFluid dynamics
dc.titleStudy on secondary flow losses modellig in compressor cascades using Reynolds averaged Navier-Stokes techniques
dc.typeBachelor thesis
dc.subject.lemacDinàmica de fluids computacional
dc.subject.lemacTurbulència
dc.subject.lemacANSYS (Sistema informàtic)
dc.subject.lemacTurbocompressors
dc.identifier.slugPRISMA-177908
dc.rights.accessOpen Access
dc.date.updated2023-09-27T18:44:10Z
dc.audience.educationlevelGrau
dc.audience.mediatorEscola Superior d'Enginyeries Industrial, Aeroespacial i Audiovisual de Terrassa
dc.audience.degreeGRAU EN ENGINYERIA EN VEHICLES AEROESPACIALS (Pla 2010)


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