摘要
A flap-type wave energy converter(WEC) is combined with a nearshore breakwater to expand the application of WECs both economically and environmentally. Based on the linear potential theory, an eigenfunction expansion solution is developed for a periodic row of bottom-hinged flap-type WECs exposed to normal waves. Additionally, the viscous effect is considered using the ship rolling solution method with a viscous damping term included in the equation of motion, and the viscous damping expression is also described. The proposed solution is verified by comparison with published literatures. The results including the wave energy conversion efficiency, the reflected and transmitted proportion of the incident wave energy are presented for a range of wave periods and geometric ratios. It is demonstrated that better wave protection effects can be attained with smaller gaps between the WECs, where the transmitted proportion of the incident wave energy is lower. An optimal geometric ratio thus exists for a given wave power absorption and a specific wave period.
A flap-type wave energy converter （WEC） is combined with a nearshore breakwater to expand the applicationof WECs both economically and environmentally. Based on the linear potential theory, an eigenfunctionexpansion solution is developed for a periodic row of bottom-hinged flap-type WECs exposed to normal waves.Additionally, the viscous effect is considered using the ship rolling solution method with a viscous damping termincluded in the equation of motion, and the viscous damping expression is also described. The proposed solution isverified by comparison with published literatures. The results including the wave energy conversion efficiency, thereflected and transmitted proportion of the incident wave energy are presented for a range of wave periods andgeometric ratios. It is demonstrated that better wave protection effects can be attained with smaller gaps between theWECs, where the transmitted proportion of the incident wave energy is lower. An optimal geometric ratio thusexists for a given wave power absorption and a specific wave period.
基金
Supported by the National Natural Science Foundation of China(No.51409105)
State Key Laboratory of Ocean Engineering Shanghai Jiao Tong University(No.1408)
Guangdong Provincial Department of Science and Technology(No.2015A020216005)
