Characteristics of a fish aggregating device with ocean energy harvester

Rahmawati, Shade; Mutsuda, Hidemi; Doi, Yoshihiro; Moriyama, Yasuo

doi:10.1007/s00773-017-0482-6

Cited by 7 publications

(2 citation statements)

References 28 publications

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“…They concluded that the relative length, wave steepness, cover object, and hanging object significantly influenced the motion responses of DFADs. Rahmawati et al [14] proposed a new type of FAD with a current turbine to study the characteristics of the fluid force on FADs in wave-current conditions, and the results indicated that surge, sway, and heave motion can be reduced significantly. Du et al [15] evaluated the interactions between waves and a flexible piezoelectric device attached to the FAD by theoretical and computational analyses, conducted the test under real sea conditions, and revealed the effect of deformation, the strain rate, and output voltage of the device under waves.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of the Hydrodynamic Response of Biodegradable Drifting Fish Aggregating Devices in Regular Waves

Zhang,

Liu,

Zhang

et al. 2024

Fishes

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Fish-aggregating devices play a significant role in tuna purse fisheries. The severe marine environment and the large number of non-biodegradable fish-aggregating devices impact structural safety and cause marine litter. Therefore, hydrodynamic performance and the use of biodegradable materials are crucial issues for ensuring the sustainability of fish-aggregating devices. In this study, a type of virtual biodegradable drifting fish-aggregating device (Bio-DFAD) was designed. Numerical simulations were conducted to investigate the motion responses and relative velocities of Bio-DFADs in regular waves (first- and fifth-order waves). The numerical model was applied based on unsteady Reynolds-averaged Navier–Stokes equations with the realizable k–ε model. For different scenarios of modeling, various conditions were modeled, including the relative length, wave steepness, and diameter of the balsa wood, to analyze their effects on the hydrodynamic response of the Bio-DFADs. The results indicated that the increased relative length, wave steepness, and diameter of balsa wood had a significant influence on the motion response amplitude operators (RAOs) and relative velocity of Bio-DFADs. The results suggested that a relative length (LF/B = 1.5) and smaller diameter (DF = 30 mm) were recommended for fewer motion responses and relative velocity. The obtained results provide insight for practical engineering applications of the hydrodynamic design of Bio-DFADs.

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Section: Introductionmentioning

confidence: 99%

Numerical Study of the Hydrodynamic Response of Biodegradable Drifting Fish Aggregating Devices in Regular Waves

Zhang,

Liu,

Zhang

et al. 2024

Fishes

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show abstract

“…Research related to the tidal current that has been carried out includes a numerical evaluation to determine the characteristics of fish aggregating devices (FADs) as well as a tidal current energy conversion system using a vertical axis turbine and a horizontal axis turbine [3]. Then, laboratory experiments were carried out to determine the self-start capability of the vertical axis turbine [4].…”

Section: Introductionmentioning

confidence: 99%

Oceanographic survey on current due to breaking wave for energy generations: a case study of Pacitan bay, East Java, Indonesia

Lestari

Mukhtasor

Satrio

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The southern sea of Indonesia faces the open ocean i.e., the Indian Ocean. This provides an initial hypothesis that the location has a ti potential for wave energy throughout the year. The current due to the breaking wave is estimated to have a high velocity. This study focuses on analyzing the velocity of current oceanographic survey due to breaking waves with a case study in Pacitan bay, East Java, Indonesia. The oceanographic survey method uses ADCP and a Current Meter to capture wave and current data sampling with the purpose of the research was for the electrical energy generation near the coast. ADCP is used to record the occurrence of waves and ocean currents before the wave break. The Current Meter is used to record current occurrences after the wave breaks. The instantaneous absolute current velocity, ca, and return current velocity, U, reach a value of 2-3 m/s.

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Experimental and numerical studies on working parameter selections of a piezoelectric-painted-based ocean energy harvester attached to fish aggregating devices

Mutsuda

Tanaka

et al. 2022

Energy for Sustainable Development

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Characteristics of a fish aggregating device with ocean energy harvester

Cited by 7 publications

References 28 publications

Numerical Study of the Hydrodynamic Response of Biodegradable Drifting Fish Aggregating Devices in Regular Waves

Numerical Study of the Hydrodynamic Response of Biodegradable Drifting Fish Aggregating Devices in Regular Waves

Oceanographic survey on current due to breaking wave for energy generations: a case study of Pacitan bay, East Java, Indonesia

Experimental and numerical studies on working parameter selections of a piezoelectric-painted-based ocean energy harvester attached to fish aggregating devices

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