Numerical techniques for the design and prediction of performance of marine turbines and propellers
| dc.contributor.advisor | Kinnas, Spyros A. | en |
| dc.contributor.committeeMember | Manuel, Lance | en |
| dc.creator | Xu, Wei, 1986- | en |
| dc.date.accessioned | 2010-12-21T20:50:03Z | en |
| dc.date.available | 2010-12-21T20:50:03Z | en |
| dc.date.available | 2010-12-21T20:50:40Z | en |
| dc.date.issued | 2010-08 | en |
| dc.date.submitted | August 2010 | en |
| dc.date.updated | 2010-12-21T20:50:40Z | en |
| dc.description | text | en |
| dc.description.abstract | The performance of a horizontal axis marine current turbine is predicted by three numerical methods, vortex lattice method MPUF-3A, boundary element method PROPCAV and a commercial RANS solver FLUENT. The predictions are compared with the experimental measurements for the same turbine model. A fully unsteady wake alignment is utilized in order to model the realistic wake geometry of the turbine. A lifting line theory based method is developed to produce the optimum circulation distribution for turbines and propellers and a lifting line theory based database searching method is used to achieve the optimum circulation distribution for tidal turbines. A nonlinear optimization method (CAVOPT-3D) and another database-searching design method (CAVOPT-BASE) are utilized to design the blades of marine current turbines and marine propellers. A design procedure for the tidal turbine is proposed by using the developed methods successively. Finally, an interactive viscous/potential flow method is utilized to analyze the effect of nonuniform inflow on the performance of tidal turbines. | en |
| dc.description.department | Civil, Architectural, and Environmental Engineering | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.uri | http://hdl.handle.net/2152/ETD-UT-2010-08-2020 | en |
| dc.language.iso | eng | en |
| dc.subject | Horizontal axis marine current turbine | en |
| dc.subject | Vortex lattice method | en |
| dc.subject | boundary element method | en |
| dc.subject | RANS solver FLUENT | en |
| dc.subject | Wake geometry | en |
| dc.title | Numerical techniques for the design and prediction of performance of marine turbines and propellers | en |
| dc.type.genre | thesis | en |
| thesis.degree.department | Civil, Architectural, and Environmental Engineering | en |
| thesis.degree.discipline | Civil Engineering | en |
| thesis.degree.grantor | University of Texas at Austin | en |
| thesis.degree.level | Masters | en |
| thesis.degree.name | Master of Science in Engineering | en |