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dc.contributor.authorLain Beatove, Santiagospa
dc.contributor.authorLópez Mejía, Omar Daríospa
dc.contributor.authorQuiñones, Jhon
dc.coverage.spatialUniversidad Autónoma de Occidente. Calle 25 115-85. Km 2 vía Cali-Jamundíspa
dc.identifier.citationMejia, O., Quiñones, J., & Laín, S. (2018). RANS and Hybrid RANS-LES Simulations of an H-Type Darrieus Vertical Axis Water Turbine. Energies, 11(9), 2348spa
dc.identifier.issn1996-1073 (en línea)spa
dc.description.abstractNowadays, the global energy crisis has encouraged the use of alternative sources like the energy available in the water currents of seas and rivers. The vertical axis water turbine (VAWT) is an interesting option to harness this energy due to its advantages of facile installation, maintenance and operation. However, it is known that its efficiency is lower than that of other types of turbines due to the unsteady effects present in its flow physics. This work aims to analyse through Computational Fluid Dynamics (CFD) the turbulent flow dynamics around a small scale VAWT confined in a hydrodynamic tunnel. The simulations were developed using the Unsteady Reynolds Averaged Navier Stokes (URANS), Detached Eddy Simulation (DES) and Delayed Detached Eddy Simulation (DDES) turbulence models, all of them based on k-ω Shear Stress Transport (SST). The results and analysis of the simulations are presented, illustrating the influence of the tip speed ratio. The numerical results of the URANS model show a similar behaviour with respect to the experimental power curve of the turbine using a lower number of elements than those used in the DES and DDES models. Finally, with the help of both the Q-criterion and field contours it is observed that the refinements made in the mesh adaptation process for the DES and DDES models improve the identification of the scales of the vorticity structures and the flow phenomena present on the near and far wake of the turbineeng
dc.format.extentpáginas 1-17spa
dc.relationEnergies, volumen 332, issue 1, páginas 253-264, (june, 2018)
dc.rightsDerechos Reservados - Universidad Autónoma de Occidentespa
dc.sourceinstname:Universidad Autónoma de Occidentespa
dc.sourcereponame:Repositorio Institucional UAOspa
dc.subjectDarrieus turbineeng
dc.subjectDelayed detached eddy simulationeng
dc.subjectDetached eddy simulationeng
dc.subjectVertical axis water turbineeng
dc.subjectComputational fluid dynamicseng
dc.subjectHybrid RANS-LES modelseng
dc.titleRANS and hybrid RANS-LES simulations of an H-Type darrieus vertical axis water turbineeng
dc.typeArtículo de revistaspa
dc.subject.lembHydraulic turbineseng
dc.subject.lembTurbinas hidráulicasspa
dc.rights.creativecommonsAtribución-NoComercial-SinDerivadas 4.0 Internacional (CC BY-NC-ND 4.0)spa
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