Performance enhancement of a semi-active flapping foil energy harvester via airfoil with modified trailing edge and jet flap

Z Lv, X Sun - Ocean Engineering, 2024 - Elsevier
This paper aims to numerically study effectiveness of the use of a suitable combination of an
airfoil with modified trailing edge and jet flap in enhancing the energy harvesting …

[HTML][HTML] Vortex-induced vibrations in an active pitching flapping foil power generator with two degrees of freedom

Y Bai, M Zheng - Physics of Fluids, 2023 - pubs.aip.org
The energy harvesting characteristics of actively pitching flapping foils under a two-degrees-
of-freedom (2DOF) system were investigated through numerical simulations. At a Reynolds …

Enhancing the Performance of an Oscillating Wing Energy Harvester Using a Leading-Edge Flap

M Alam, CH Sohn - Journal of Marine Science and Engineering, 2023 - mdpi.com
In this study, we investigated the power generation capability of an oscillating wing energy
harvester featuring an actively controlled flap positioned at the wing's leading edge. The …

Power Extraction Performance by a Hybrid Non-Sinusoidal Pitching Motion of an Oscillating Energy Harvester

S Saleh, CH Sohn - Energies, 2024 - mdpi.com
This study proposes a hybrid pitching motion for oscillating flat plates aimed at augmenting
the energy extraction efficiency of an energy harvester. The proposed hybrid pitching …

Study of lift enhancing mechanisms via comparison of the flapping trajectory of tandem flapping foil

PK Swain, SP Dora, AK Barik, CBNS Abhishikt… - Physics of …, 2023 - pubs.aip.org
Designing an aero/hydrovehicle that mimics natural swimmers such as fish is a challenging
task. In the present study, an attempt has been made to mimic the fish tail motion that …

The wake interaction in a tandem configuration flapping foil with variable flapping trajectory

L Dharmana, SCVRM Naidu, PK Swain, S Vadapalli - Ocean Engineering, 2024 - Elsevier
This work investigates the impact of the wake vortex on the energy extraction efficiency of a
tandem-configuration flapping foil. Most numerical research on these subjects is done on …

Study on energy harvest performance of a flapping hydrofoil with swept leading edges by numerical methods

X Pang, B Zhang, H Yao - Ocean Engineering, 2024 - Elsevier
Inspired by the superior hydrodynamic performance of fish tails with swept shapes, whether
a flapping hydrofoil with swept leading edges has higher energy harvesting efficiency …

Wave propulsion for surface vehicle by foils with active angle of attack adjustment

Y Zhang, L Xu, Z Ding, M Hu - Ocean Engineering, 2023 - Elsevier
Extracting wave energy as propulsion for surface vehicles saves non-renewable energy.
The fluid moves in a circular or elliptical trajectory in the wave, and its direction of motion …

Numerically Investigating the Energy-Harvesting Performance of an Oscillating Flat Plate with Leading and Trailing Flaps

S Saleh, CH Sohn - Energies, 2024 - mdpi.com
This study investigates the power generation capability of an oscillating wing energy
harvester equipped with two actively controlled flaps positioned at the leading and trailing …

[HTML][HTML] The power-extraction regime of a figure-eight trajectory flapping-foil turbine

M Zheng, H Yao, Y Bai, Q Bo, X Chi, J Chen - Physics of Fluids, 2024 - pubs.aip.org
At specified Reynolds numbers Re= ρ vc/μ= 5× 10 5⁠, this study investigates the power-
extraction regime of a flapping-foil turbine executing a figure-eight trajectory. This study …