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JSIR Vol.71(06) [June 2012] >

Title: Pressure distribution of rotating small wind turbine blades with winglet using wind tunnel
Authors: Saravanan, P
Parammasivam, K M
Rajan, Selvi
Keywords: Blade surfaces
Pressure distribution
Wind turbine rotor
Issue Date: Jun-2012
Publisher: NISCAIR-CSIR, India
Abstract: This study presents pressure distribution over an envelope of blade with and without winglets for a small wind turbine in boundary layer wind tunnel. Different winglet configurations were tried based on winglet height and curvature radius. Pressure measurements were made with different chordwise and spanwise locations on the blade with and without winglets nearby tip region. Winglet improves overall pressure difference between pressure surface and suction surface. Presence of winglet seemed to have the pressure increased at 0.3c and maximum pressure difference was observed at a span of 0.95R for all winglet configurations. In suction, surface pressure decrease was 10% for all winglet configurations.
Page(s): 425-429
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1084 (Online); 0022-4456 (Print)
Source:JSIR Vol.71(06) [June 2012]

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