碩士 / 臺灣大學 / 工程科學及海洋工程學研究所 / 98 / ABSTRACT
This study discusses the performance of Wind Turbine Marine Unit (WEMU) with variable pitch angle and deformable flap, as determined by computational fluid dynamics (CFD) and water tank experiment. Different types of rotor with different geometric and blade numbers were compared and analyzed. The CFD software FLUENT was used to simulate the turbine rotating in the flow field. Numerical computation was run using the Spalart-Allmaras turbulence model. The inlet direction was set along the X-axis from negative X to positive X. The moving reference frame (MRF) method was used to simulated the rotation of rotor zone , and different tip speed ratio (TSR) were specified to calculate the torque and power generated from different types of blade rotors. To verify the CFD results, a tow carriage was used to pull the WEMU in the water tank in order to simulate water flow through the turbine. When the turbine started running, the average torque and rotation speed were measured by torque meter and tachometer respectively. The results showed that the higher the blade number set, the greater the torque and power derived. It was also found that the deformation of the flaps resulted in a decrease in torque and power, contrary to what had been expected.
| Identifer | oai:union.ndltd.org:TW/098NTU05345053 |
| Date | January 2010 |
| Creators | Yu-Hsun Lin, 林佑勳 |
| Contributors | Jen-Shing Kouh, 郭真祥 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 77 |
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