Numerical analysis of a Wells turbine with flexible trailing blade edges

dc.contributorWoodbury, Keith
dc.contributorSrinivasan, Kalyan
dc.contributorHalpern, David
dc.contributor.advisorMacPhee, David W.
dc.contributor.authorKincaid, Kellis
dc.contributor.otherUniversity of Alabama Tuscaloosa
dc.date.accessioned2020-09-30T17:24:55Z
dc.date.available2020-09-30T17:24:55Z
dc.date.issued2020
dc.descriptionElectronic Thesis or Dissertationen_US
dc.description.abstractThis thesis examines the effect of a partially morphing blade on the performance of a Wells turbine, for the purpose of wave energy conversion. A numerical model is constructed using Foam-Extend, v4.0, incorporating a fluid domain as well as a solid region and strongly coupled fluid-structure interaction algorithm. Once the model is validated against previous experimental work, the turbine tip gap and elastic modulus of the solid region are varied, and the resulting performance and flow field changes are examined. Each turbine with morphing blades performed better than its corresponding rigid counterpart, regardless of the degree of flexibility introduced to the blade. A maximum increase in torque output of nearly 17% was observed in some cases, due to the combined effect of blade deformation into the tip gap area as well as axial deformation, resulting in a change of local angle of attack. These increases were largely in part due to the favorable changes in pressure field resulting from the deformation of the blade under inertial and aerodynamic forces.en_US
dc.format.extent122 p.
dc.format.mediumelectronic
dc.format.mimetypeapplication/pdf
dc.identifier.otheru0015_0000001_0003621
dc.identifier.otherKincaid_alatus_0004M_14096
dc.identifier.urihttp://ir.ua.edu/handle/123456789/7020
dc.languageEnglish
dc.language.isoen_US
dc.publisherUniversity of Alabama Libraries
dc.relation.hasversionborn digital
dc.relation.ispartofThe University of Alabama Electronic Theses and Dissertations
dc.relation.ispartofThe University of Alabama Libraries Digital Collections
dc.rightsAll rights reserved by the author unless otherwise indicated.en_US
dc.subjectMechanical engineering
dc.titleNumerical analysis of a Wells turbine with flexible trailing blade edgesen_US
dc.typethesis
dc.typetext
etdms.degree.departmentUniversity of Alabama. Department of Mechanical Engineering
etdms.degree.disciplineMechanical Engineering
etdms.degree.grantorThe University of Alabama
etdms.degree.levelmaster's
etdms.degree.nameM.S.
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