Momentum recovery process in the non-axisymmetric wake of a hydrokinetic turbine at high blockage ratio

Vista sencilla de ítem
dc.contributor.affiliationUniversidad de Medellín, Medellin, Colombia
dc.contributor.affiliationUniversity of Florida, Gainesville, United States
dc.contributor.authorD., López-De-Mesa, Daniel
dc.contributor.authorR.D., Montoya-Ramírez, Rubén Darío
dc.contributor.authorX., Yu, Xiao
dc.date.accessioned2025-12-03T19:34:53Z
dc.date.available2025-12-03T19:34:53Z
dc.date.issued2025
dc.descriptionLarge Eddy Simulation (LES) is used to investigate the wake dynamics of a horizontal-axis hydrokinetic turbine operating at a 35% blockage ratio, significantly higher than in previous wake studies (≤18%). The numerical model was validated against acoustic Doppler velocimeter data from a recirculating flume. The high blockage and non-uniform tip clearances drive non-axisymmetric wake evolution, with the LES model successfully predicting wake recovery length and momentum exchange between the bypass flow and wake. The results demonstrate that the proximity of flume walls alters wake recovery mechanisms in two critical ways: (i) stronger inward turbulent transport immediately downstream of the device, mitigating wake expansion, and (ii) interactions with wall-generated horseshoe vortices that accelerate the break-up of tip vortices, causing an earlier peak in advective and turbulent momentum transport to the wake. For the first time, a momentum budget analysis in confined flow conditions reveals how blockage effects enhance azimuthal advection in the far-wake and induce wake tilting. These findings provide fundamental insights for optimizing turbine arrays in high-blockage environments such as irrigation canals, tailraces, and tidal channels. © 2025 Elsevier B.V., All rights reserved.
dc.identifier.doi10.1016/j.energy.2025.138332
dc.identifier.instnameinstname:Universidad de Medellínspa
dc.identifier.isbn0080319424
dc.identifier.isbn0080328016
dc.identifier.isbn0080340016
dc.identifier.isbn0080311202
dc.identifier.isbn0080305326
dc.identifier.isbn0080316549
dc.identifier.isbn008032780X
dc.identifier.isbn9780080327808
dc.identifier.issn03605442
dc.identifier.issn18736785
dc.identifier.reponamereponame:Repositorio Institucional Universidad de Medellínspa
dc.identifier.repourlrepourl:https://repository.udem.edu.co/
dc.identifier.urihttp://hdl.handle.net/11407/9270
dc.language.isoeng
dc.publisherElsevier Ltdspa
dc.publisher.facultyFacultad de Ingenieríasspa
dc.publisher.programIngeniería Civilspa
dc.relation.citationvolume336
dc.relation.isversionofhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-105015409793&doi=10.1016%2Fj.energy.2025.138332&partnerID=40&md5=bd85bde0d1583e21d36876b8fac24536
dc.relation.referencesMsigwa, Goodluck, Considerations on environmental, economic, and energy impacts of wind energy generation: Projections towards sustainability initiatives, Science of the Total Environment, 849, (2022)
dc.relation.referencesKumar, Dinesh, A review on the technology, performance, design optimization, reliability, techno-economics and environmental impacts of hydrokinetic energy conversion systems, Renewable and Sustainable Energy Reviews, 58, pp. 796-813, (2016)
dc.relation.referencesIbrahim, Wan Ismail, Hydrokinetic energy harnessing technologies: A review, Energy Reports, 7, pp. 2021-2042, (2021)
dc.relation.referencesYadav, Pankaj Kumar, A critical review of technologies for harnessing the power from flowing water using a hydrokinetic turbine to fulfill the energy need, Energy Reports, 9, pp. 2102-2117, (2023)
dc.relation.referencesTseng, Chien Yung, Hydrokinetic energy applications within hydropower tailrace channels: Implications, siting, and U.S. potential, Renewable Energy, 238, (2025)
dc.relation.referencesPosa, Antonio, Characterization of the turbulent wake of an axial-flow hydrokinetic turbine via large-eddy simulation, Computers and Fluids, 216, (2021)
dc.relation.referencesNiebuhr, Chantel M., A review of commercial numerical modelling approaches for axial hydrokinetic turbine wake analysis in channel flow, Renewable and Sustainable Energy Reviews, 158, (2022)
dc.relation.referencesOlczak, A., Comparison of a RANS blade element model for tidal turbine arrays with laboratory scale measurements of wake velocity and rotor thrust, Journal of Fluids and Structures, 64, pp. 87-106, (2016)
dc.relation.referencesFontaine, Arnold A., Performance and wake flow characterization of a 1:8.7-scale reference USDOE MHKF1 hydrokinetic turbine to establish a verification and validation test database, Renewable Energy, 159, pp. 451-467, (2020)
dc.relation.referencesPosa, Antonio, Momentum recovery downstream of an axial-flow hydrokinetic turbine, Renewable Energy, 170, pp. 1275-1291, (2021)
dc.rights.accesoRestricted access
dc.rights.accessrightsinfo:eu-repo/semantics/restrictedAccess
dc.sourceEnergy
dc.sourceScopus
dc.subjectHigh-solidity Propeller
dc.subjectHydrokinetic Turbines
dc.subjectLarge Eddy Simulation
dc.subjectMomentum Transfer
dc.subjectTip Vortices
dc.subjectWake Recovery
dc.subjectBudget Control
dc.subjectClassifiers
dc.subjectDoppler Effect
dc.subjectHydraulic Motors
dc.subjectHydrodynamics
dc.subjectMomentum
dc.subjectMomentum Transfer
dc.subjectTurbines
dc.subjectVortex Flow
dc.subjectWakes
dc.subjectAxisymmetric Wakes
dc.subjectBlockage Ratio
dc.subjectHigh Solidities
dc.subjectHigh-solidity Propeller
dc.subjectHydrokinetic Turbines
dc.subjectLarge-eddy Simulations
dc.subjectRecovery Process
dc.subjectTip Vortex
dc.subjectWake Dynamics
dc.subjectWake Recovery
dc.subjectLarge Eddy Simulation
dc.subjectAdvection
dc.subjectBypass
dc.subjectIrrigation System
dc.subjectNumerical
dc.subjectBudget control
dc.subjectClassifiers
dc.subjectDoppler effect
dc.subjectHydraulic motors
dc.subjectHydrodynamics
dc.subjectMomentum
dc.subjectMomentum transfer
dc.subjectTurbines
dc.subjectVortex flow
dc.subjectWakes
dc.subjectAxisymmetric wakes
dc.subjectBlockage ratio
dc.subjectHigh solidities
dc.subjectHigh-solidity propeller
dc.subjectHydrokinetic turbines
dc.subjectLarge-eddy simulations
dc.subjectRecovery process
dc.subjectTip vortex
dc.subjectWake dynamics
dc.subjectWake recovery
dc.subjectLarge eddy simulation
dc.subjectadvection
dc.subjectbypass
dc.subjectirrigation system
dc.subjectnumerical model
dc.subjectsimulation
dc.subjectturbine
dc.subjectwake Model
dc.subjectSimulation
dc.subjectTurbine
dc.subjectWake
dc.titleMomentum recovery process in the non-axisymmetric wake of a hydrokinetic turbine at high blockage ratio
dc.typeArticle
dc.type.localArtículospa
dc.type.versioninfo:eu-repo/semantics/publishedVersion

Archivos

Colecciones

Indexados Scopus