An Investigative Study on Energy Harvesting by Hydrofoils: Simple vs. Undulated

A series of experiments were performed using multiple configurations of hydrofoils to assess the energy harvesting capabilities present within the wake of streamlined bodies. The experiments were performed in a low-speed water tunnel, with energy harvesting assessed using a piezoelectric eel and ima...

Full description

Saved in:
Bibliographic Details
Published in:Energies (Basel) 2024-12, Vol.17 (24), p.6417
Main Authors: Mehmood, Asad, Qureshi, Saad, Ghafoor, Usman, Swati, Raees, Gillani, Fouzia, Bibi, Sameena, Bakkar, Abu, Shah, Muhammad
Format: Article
Language:English
Subjects:
Alternative energy sources
Aquaculture
Carbon
Design
Efficiency
Electric power production
Electricity
Energy consumption
energy harvesting
Energy industry
Energy resources
Fishes
Harvest
Hydrofoil boats
hydrofoils
Hydrogen production
Imaging systems
piezoelectric eel
Renewable resources
Reynolds number
Solar energy
Vibration
Vortices
Water quality
water tunnel
Wind power
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A series of experiments were performed using multiple configurations of hydrofoils to assess the energy harvesting capabilities present within the wake of streamlined bodies. The experiments were performed in a low-speed water tunnel, with energy harvesting assessed using a piezoelectric eel and imaging equipment. Half-sinusoidal undulations were introduced in different combinations on the leading and trailing edges of the hydrofoil. All hydrofoils utilized a NACA 0012 cross-sectional profile. A piezoelectric eel was placed at a variable distance downstream of the hydrofoil’s trailing edge, and the hydrofoil’s angle of attack (α) was varied in order to assess the variation in power generation. The maximum power output was achieved at x/c = 1–1.5 downstream of the trailing edge in all configurations. It was observed that harvested energy is dependent on the oscillation of the eel, α, the streamwise distance between the trailing edge of the hydrofoils and the eel, as well as the geometry of the hydrofoils. Particle image velocimetry was also performed on selected cases for which the recorded energy harvest was high. The results showed that the NACA 0012 base profile has a higher extractable energy capacity in its wake than do the serrated hydrofoils, which confirms the results found in the literature.
ISSN:1996-1073
1996-1073
DOI:10.3390/en17246417