Design and optimization of airfoil profiles for vertical wind turbines

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dc.contributor.authorStenmark, Johanna
dc.contributor.departmentChalmers tekniska högskola / Institutionen för mekanik och maritima vetenskapersv
dc.contributor.departmentChalmers University of Technology / Department of Mechanics and Maritime Sciencesen
dc.contributor.examinerNilsson, Håkan
dc.contributor.supervisorCorniglion, Rémi
dc.date.accessioned2023-08-02T12:38:29Z
dc.date.available2023-08-02T12:38:29Z
dc.date.issued2023
dc.date.submitted2023
dc.description.abstractOffshore floating vertical axis wind turbines could be a great renewable energy source to meet the needs for renewable energy since they can be placed in deep waters and unlock new potential areas for wind farms. The specific operating conditions of a vertical axis wind turbine blade call for a purposely designed airfoil profile to improve performance and reduce cost. The blades must be both aerodynamically and structurally good. Airfoil profiles were optimized using a genetic algorithm with both an aerodynamic and structural objective: to maximize the power coefficient and to maximize the section modulus. The power coefficient was calculated with the actuator cylinder method using polars from XFoil which captured the operating conditions of the vertical axis wind turbine. The obtained optimized family of airfoils showed increased blade and turbine performance compared to the often used NACA 0018. Some of the optimized airfoil profile have the potential to reduce the weight of vertical axis wind blades based on a simple estimation.
dc.identifier.coursecodeMMSX30
dc.identifier.urihttp://hdl.handle.net/20.500.12380/306727
dc.language.isoeng
dc.setspec.uppsokTechnology
dc.subjectVAWT
dc.subjectbi-objective optimization
dc.subjectgenetic algorithm
dc.subjectNSGA-II
dc.subjectairfoil profile
dc.subjectAC method
dc.subjectrenewable energy
dc.titleDesign and optimization of airfoil profiles for vertical wind turbines
dc.type.degreeExamensarbete för masterexamensv
dc.type.degreeMaster's Thesisen
dc.type.uppsokH
local.programmeApplied mechanics (MPAME), MSc
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