Conceptual design and numerical simulations of a vertical axis water turbine used for underwater mooring platforms

International Journal of Naval Architecture and Ocean Engineering

Song Baowei¹  Mao Zhaoyong¹  Tian Wenlong¹ 

[1] School of Marine Science and Technology, Northwestern Polytechnical University, Xi'an, China;

关键词: Underwater mooring platform;    Water turbine;    Computational fluid dynamics;   

DOI  :  10.2478/IJNAOE-2013-0158

来源: DOAJ

【 摘 要 】

Energy is a direct restriction to the working life of an underwater mooring platform (UMP). In this paper, a vertical axis water turbine (VAWT) is designed to supply energy for UMPs. The VAWT has several controlled blades, which can be opened or closed by inside plunger pumps. Two-dimensional transient numerical studies are presented to determine the operating performance and power output of the turbine under low ocean current velocity. A standard k-ε turbulence model is used to perform the transient simulations. The influence of structural parameters, including foil section profile, foil chord length and rotor diameter, on the turbine performance are investigated over a range of tip-speed-ratios (TSRs). It was found that turbine with three unit length NACA0015 foils generated a maximum averaged coefficient of power, 0.1, at TSR = 2.

【 授权许可】

Unknown