The Study of Leading Edge Protuberances on Blade Performance of Horizontal Axis Wind Turbine

  • 黃 國源

Student thesis: Master's Thesis

Abstract

In this study the research is focused on the wind tunnel experiment of leading edge protuberances on blades performance at the stall region of small-scale horizontal axis wind turbine (HAWT) with variable rotational speed The airfoil of all test model based on the SD8000 profiles with smooth (baseline) leading edge for comparison with the distinct definition of amplitude and wavelength of sinusoidal leading edge The experiment was performed on the full-span models to get the coefficient of lift-drag ratio Along with the full-span models rotor blade models were also tested separately and the data for blade performance were evaluated For all of the test model the results indicated that the improvement of the stall effect of leading edge protuberances is significant with smaller amplitude for comparison with the baseline model The curve of sin3 (A004 W0145) has higher C_p than other rotor models at the lower tip speed ratio between TSR= 3 ~4 Due to the effect of solidity the larger amplitude produced a broad and flat curve means that the C_p is lower than others
Date of Award2014 Aug 18
Original languageEnglish
SupervisorYui-Chuin Shiah (Supervisor)

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