Based on the concept of space sharing and cost allocation
an integrated system combining oscillating buoy type wave energy converter and floating breakwater was proposed
and a coupled numerical model was established by computational fluid dynamics method
and the hydrodynamic characteristics of the integrated system was investigated
and the effects of power take-off (PTO) damping
the gap between wave energy converter and floating breakwater
the width of wave energy converter on the energy capture and wave attenuation characteristics of the integrated system were analyzed. The results show that the relative motion of the proposed integrated system is better than that of wave energy converter and stationary breakwater integrated system and the isolated wave energy converter. The reasonable selection of PTO damping coefficient can make the integrated system get better energy capture and wave attenuation performance. The reduction of the gap and the increase in the width of the wave energy converter can improve the energy capture characteristics of the integrated system
REN J Q, JIN P, LIU Y Y, et al.Wave attenuation and focusing by a parabolic arc pontoon breakwater[J]. Energy, 2021, 217: 119405.
MADHI F, SINCLAIR M E, YEUNG R W.The "Berkeley wedge": an asymmetrical energy-capturing floating breakwater of high performance[J]. Marine systems & ocean technology, 2014, 9(1): 5-16.
NING D Z, ZHAO X L, GÖTEMAN M, et al. Hydrodynamic performance of a pile-restrained WEC-type floating breakwater: an experimental study[J]. Renewable energy, 2016, 95: 531-541.
CHEN Q, ZANG J, BIRCHALL J, et al.On the hydrodynamic performance of a vertical pile-restrained WEC-type floating breakwater[J]. Renewable energy, 2020, 146: 414-425.
JI Q L, CHEN G Q.Hydrodynamic responses of a reversed L type floating breakwater integrated with a wave energy converter impacted by extreme waves[J]. Ocean engineering, 2023, 272: 113898.
ZHAO X L, NING D Z.Experimental investigation of breakwater-type WEC composed of both stationary and floating pontoons[J]. Energy, 2018, 155: 226-233.
ZHANG H M, ZHOU B Z, VOGEL C, et al.Hydrodynamic performance of a dual-floater hybrid system combining a floating breakwater and an oscillating-buoy type wave energy converter[J]. Applied energy, 2020, 259: 114212.
ZHANG H M, ZHOU B Z, ZANG J, et al.Effects of narrow gap wave resonance on a dual-floater WEC-breakwater hybrid system[J]. Ocean engineering, 2021, 225: 108762.
GODA Y, SUZUKI Y.Estimation of incident and reflected waves in random wave experiments[C]//Coastal Engineering 1976. Honolulu, Hawaii, USA, 1977.