Comparison of hydrokinetic energy harvesting performance of a fluttering hydrofoil against other Flow-Induced Vibration (FIV) mechanisms
V Tamimi, J Wu, MJ Esfehani, M Zeinoddini… - Renewable Energy, 2022 - Elsevier
Despite the valuable previous studies on energy harvesting from flutter instability, no
decisive ranking still exists between fluttering generators and harvesters based on other …
decisive ranking still exists between fluttering generators and harvesters based on other …
Wake-foil interactions and energy harvesting efficiency in tandem oscillating foils
Oscillating foils in synchronized pitch/heave motions can be used to harvest hydrokinetic
energy. By understanding the wake structure and its correlation with the foil kinematics …
energy. By understanding the wake structure and its correlation with the foil kinematics …
A new dynamic stall prediction framework based on symbiosis of experimental and simulation data
Dynamic stall requires both accurate and efficient predictions. To model the unsteady
aerodynamics of dynamic stall, a symbiosis method for dynamic stall prediction is proposed …
aerodynamics of dynamic stall, a symbiosis method for dynamic stall prediction is proposed …
Machine learning to classify vortex wakes of energy harvesting oscillating foils
BLR Ribeiro, JA Franck - AIAA Journal, 2023 - arc.aiaa.org
A machine learning model is developed to establish wake patterns behind oscillating foils
for energy harvesting. The role of the wake structure is particularly important for array …
for energy harvesting. The role of the wake structure is particularly important for array …
Hydrodynamic analysis of three oscillating hydrofoils with wing-in-ground effect on power extraction performance
Currently, oscillating-foil power extraction turbines have been developed as a new
competitive way compared with rotor blade designs. In the present study, oscillating …
competitive way compared with rotor blade designs. In the present study, oscillating …
Leading edge vortex formation and wake trajectory: Synthesizing measurements, analysis, and machine learning
The strength and trajectory of a leading edge vortex (LEV) formed by a pitching-heaving
hydrofoil (chord c) is studied. The LEV is identified using the Q-criterion method, which is …
hydrofoil (chord c) is studied. The LEV is identified using the Q-criterion method, which is …
Improvement of the power extraction performance of a semi-active flapping airfoil by employing two-sided symmetric slot airfoil
Low power extraction efficiency is considered as one of the significant drawbacks of the
semi-active flapping airfoil power generator (FAPG). A novel two-sided symmetric slot airfoil …
semi-active flapping airfoil power generator (FAPG). A novel two-sided symmetric slot airfoil …
Wavelet analysis of the flow field around an oscillating airfoil undergoing pure pitching motion at low Reynolds number
This paper investigates the flow field around a NACA (National Advisory Committee for
Aeronautics) 0012 airfoil undergoing pure pitching motion using continuous wavelet …
Aeronautics) 0012 airfoil undergoing pure pitching motion using continuous wavelet …
Wake vortex structures and hydrodynamics performance of a power-extraction flapping hydrofoil
W Mo, G He, H Ghassemi, H Yang, W Mao - Physics of Fluids, 2023 - pubs.aip.org
Numerical simulations are used to investigate wake vortex structures with different aspect
ratios (ARs) of flapping hydrofoil on power extraction. Simulations employ a finite-volume …
ratios (ARs) of flapping hydrofoil on power extraction. Simulations employ a finite-volume …
High-efficiency can be achieved for non-uniformly flexible pitching hydrofoils via tailored collective interactions
New experiments examine the interactions between a pair of three-dimensional (AR= 2) non-
uniformly flexible pitching hydrofoils through force and efficiency measurements. It is …
uniformly flexible pitching hydrofoils through force and efficiency measurements. It is …