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QI/ A wind turbine rotor is calculated with a wind speed u-13 m/s. the rotor diameter D=10 m. the NACA 63, -618 profile is chosen. Calculations are made on basic of Re = 3.0 10 the rotor blade is divided into 7 sections and each element has a length of dr = 0.643 m. we look at the fifth section with chord c= 0.266m and section pitch angle 0-5.3°. calculations have shown that the axial induction factor a=0.158 and tangential induction factor a 0.012. calculate on basis of undisturbed wind speed u = 13 m/s and w = 12 rad/s

QI/ A wind turbine rotor is calculated with a wind speed u-13 m/s. the rotor diameter D=10 m. the NACA 63, -618 profile is chosen. Calculations are made on basic of Re = 3.0 10 the rotor blade is divided into 7 sections and each element has a length of dr = 0.643 m. we look at the fifth section with chord c= 0.266m and section pitch angle 0-5.3°. calculations have shown that the axial induction factor a=0.158 and tangential induction factor a 0.012. calculate on basis of undisturbed wind speed u = 13 m/s and w = 12 rad/s

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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QI/ A wind turbine rotor is calculated with a wind speed u=13 m/s. the rotor diameter D=10 m. the NAÇA 63: -618 profile is chosen. Calculations are made on basic of Re = 3.0*10 the rotor blade is divided into 7 sections and each element has a length of dr = 0.643 m. we look at the fifth section with chord c= 0.266m and section pitch angle e =5.3°. calculations have shown that the axial induction factor a=0.158 and tangential induction factor a = 0.012. calculate on basis of undisturbed wind speed u = 13 m/s and w = 12 rad/s a- The angle of relative wind p. b- The angle of attack a and lift and drag coefficients. c- The relative wind velocity uet - d- Lift force L and drag force D for the section. e- Tangential and axial forces for the section. f- Tuming moment Mi for the section. g- The shaft power Pat for the section h- The coefficients C, and C. i- The solidity a.
Transcribed Image Text:QI/ A wind turbine rotor is calculated with a wind speed u=13 m/s. the rotor diameter D=10 m. the NAÇA 63: -618 profile is chosen. Calculations are made on basic of Re = 3.0*10 the rotor blade is divided into 7 sections and each element has a length of dr = 0.643 m. we look at the fifth section with chord c= 0.266m and section pitch angle e =5.3°. calculations have shown that the axial induction factor a=0.158 and tangential induction factor a = 0.012. calculate on basis of undisturbed wind speed u = 13 m/s and w = 12 rad/s a- The angle of relative wind p. b- The angle of attack a and lift and drag coefficients. c- The relative wind velocity uet - d- Lift force L and drag force D for the section. e- Tangential and axial forces for the section. f- Tuming moment Mi for the section. g- The shaft power Pat for the section h- The coefficients C, and C. i- The solidity a.
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