Experimental study of dynamic response of passive flapping hydrofoil in regular wave

Date

2023-07-26

Supervisor/s

Journal Title

Journal ISSN

Volume Title

Publisher

American Institute of Physics (AIP)

Department

Type

Article

ISSN

1070-6631

Format

Free to read from

Citation

Wang J, Santhosh S, Colomes O, et al., (2023) Experimental study of dynamic response of passive flapping hydrofoil in regular wave. Physics of Fluids, Volume 35, Issue 7, July 2023, Article No. 077127

Abstract

The hydrofoil harnesses wave energy and converts it into thrust. In this paper, we present the results of the first experimental study investigating the dynamic behavior of a fully passive foil with spring-loaded pitch and heave in regular waves. Our study shows that the real-time load signal is multi-harmonic with strong superposition, directly proving the robust energy harvesting performance due to the restoring springs. By interpreting the hydrofoil's pose and path from an image sequence captured underwater, we conclude the dynamic evolution of the fully passive hydrofoil interacting with regular waves. The hydrofoil's dynamics exhibit asymmetric surge, pitch, and heave in a motion cycle. Furthermore, we employ a pixel capturing algorithm with self-correction utility to quantify the hydrofoil's forward displacement from the image sequence of the moving carriage. These findings provide valuable insight into the performance and potential of hydrofoils for marine propulsion.

Description

Software Description

Software Language

Github

Keywords

Energy harvesting, Wave power, Spring stiffness, Sensors, Wave mechanics, Fluid dynamics

DOI

Rights

Attribution-NonCommercial-NoDerivatives 4.0 International

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