DocumentCode :
3166655
Title :
Numerical studies of the flowfield over a hybrid VAWT with different torque
Author :
Chang, Liang-Ji ; Hsu, Uzu-Kuei ; Miao, Ming, Jr. ; Hui, Ho-Ming ; Tai, Chang-Hsien
Author_Institution :
Dept. of Vehicles Eng., Nat. Pingtung Univ. of Sci. & Technol., Pingtung, Taiwan
fYear :
2011
fDate :
16-18 April 2011
Firstpage :
5077
Lastpage :
5081
Abstract :
The study was a simulation of the organization of the axial wind turbines, the resistance type and three-piece lift-type structure, resistance type is semi-circular arc type, lift type of blade were NACA0018 airfoil and NACA4412, the inflow and rotational flow interactions. CFD computational fluid dynamics methods using finite volume method to solve Navier-Stokes equations to SIMPLE algorithms for incompressible flow, coupled with second-order upwind and dependency by testing the grid with the grid and the analytical characteristics of the turbulent flow pattern transition, And the other with sliding mesh method, and the additional number of dynamic flow rate of angular momentum, CFD simulation, the resistance type and NACA0018 and NACA4412 torque output, the more complex the fan if installed NACA0018 and NACA4412 additional vertical axis wind turbine will also improve the two Species of the wing part of the export value of the reverse. Only the resistance-type than the original state of the torque output value can be 3.6 times higher.
Keywords :
computational fluid dynamics; wind turbines; NACA0018 airfoil; NACA4412; Navier-Stokes equations; SIMPLE algorithms; angular momentum; computational fluid dynamics; finite volume method; incompressible flow; resistance type; second-order upwind; semi-circular arc type; sliding mesh method; three-piece lift-type structure; vertical axis wind turbine; Aerodynamics; Atmospheric modeling; Automotive components; Blades; Computational fluid dynamics; Rotors; Wind turbines; Savonius VAWT; finite volume method; guiding van; power;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Consumer Electronics, Communications and Networks (CECNet), 2011 International Conference on
Conference_Location :
XianNing
Print_ISBN :
978-1-61284-458-9
Type :
conf
DOI :
10.1109/CECNET.2011.5769180
Filename :
5769180
Link To Document :
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