Investigation of Submergence Depth and Wave-Induced Effects on the Performance of a Fully Passive Energy Harvesting Flapping Foil Operating Beneath the Free Surface

This paper investigates the performance of a fully passive flapping foil device for energy harvesting in a free surface flow. The study uses numerical simulations to examine the effects of varying submergence depths and the impact of monochromatic waves on the foil’s performance. For the numerical s...

Full description

Bibliographic Details
Main Authors: Nikos Petikidis, George Papadakis
Format: Article
Language:English
Published: MDPI AG 2023-08-01
Series:Journal of Marine Science and Engineering
Subjects:
Online Access:https://www.mdpi.com/2077-1312/11/8/1559
_version_ 1827729459712622592
author Nikos Petikidis
George Papadakis
author_facet Nikos Petikidis
George Papadakis
author_sort Nikos Petikidis
collection DOAJ
description This paper investigates the performance of a fully passive flapping foil device for energy harvesting in a free surface flow. The study uses numerical simulations to examine the effects of varying submergence depths and the impact of monochromatic waves on the foil’s performance. For the numerical simulations, a in-house artificial compressibility two-phase solver is employed and coupled with a rigid body dynamic solver. The results show that the fully passive flapping foil device can achieve high efficiency for submergence depths between 4 and 9 chords, with an “optimum” submergence depth where the flapping foil performance is maximised. The effects of regular waves on the foil’s performance were also investigated, showing that waves with a frequency close to that of the natural frequency of the flapping foil-aided energy harvesting. Overall, this study provides insights that could be useful for future design improvements for fully passive flapping foil devices for energy harvesting operating near the free surface.
first_indexed 2024-03-10T23:49:08Z
format Article
id doaj.art-05a30e2377bf4e0abd243baedb1b7b8c
institution Directory Open Access Journal
issn 2077-1312
language English
last_indexed 2024-03-10T23:49:08Z
publishDate 2023-08-01
publisher MDPI AG
record_format Article
series Journal of Marine Science and Engineering
spelling doaj.art-05a30e2377bf4e0abd243baedb1b7b8c2023-11-19T01:45:48ZengMDPI AGJournal of Marine Science and Engineering2077-13122023-08-01118155910.3390/jmse11081559Investigation of Submergence Depth and Wave-Induced Effects on the Performance of a Fully Passive Energy Harvesting Flapping Foil Operating Beneath the Free SurfaceNikos Petikidis0George Papadakis1School of Naval Architecture & Marine Engineering, National Technical University of Athens, 15780 Zografos, GreeceSchool of Naval Architecture & Marine Engineering, National Technical University of Athens, 15780 Zografos, GreeceThis paper investigates the performance of a fully passive flapping foil device for energy harvesting in a free surface flow. The study uses numerical simulations to examine the effects of varying submergence depths and the impact of monochromatic waves on the foil’s performance. For the numerical simulations, a in-house artificial compressibility two-phase solver is employed and coupled with a rigid body dynamic solver. The results show that the fully passive flapping foil device can achieve high efficiency for submergence depths between 4 and 9 chords, with an “optimum” submergence depth where the flapping foil performance is maximised. The effects of regular waves on the foil’s performance were also investigated, showing that waves with a frequency close to that of the natural frequency of the flapping foil-aided energy harvesting. Overall, this study provides insights that could be useful for future design improvements for fully passive flapping foil devices for energy harvesting operating near the free surface.https://www.mdpi.com/2077-1312/11/8/1559passive hydrofoilsubmergence depthtwo-phase flowsartificial compressibilitywaves
spellingShingle Nikos Petikidis
George Papadakis
Investigation of Submergence Depth and Wave-Induced Effects on the Performance of a Fully Passive Energy Harvesting Flapping Foil Operating Beneath the Free Surface
Journal of Marine Science and Engineering
passive hydrofoil
submergence depth
two-phase flows
artificial compressibility
waves
title Investigation of Submergence Depth and Wave-Induced Effects on the Performance of a Fully Passive Energy Harvesting Flapping Foil Operating Beneath the Free Surface
title_full Investigation of Submergence Depth and Wave-Induced Effects on the Performance of a Fully Passive Energy Harvesting Flapping Foil Operating Beneath the Free Surface
title_fullStr Investigation of Submergence Depth and Wave-Induced Effects on the Performance of a Fully Passive Energy Harvesting Flapping Foil Operating Beneath the Free Surface
title_full_unstemmed Investigation of Submergence Depth and Wave-Induced Effects on the Performance of a Fully Passive Energy Harvesting Flapping Foil Operating Beneath the Free Surface
title_short Investigation of Submergence Depth and Wave-Induced Effects on the Performance of a Fully Passive Energy Harvesting Flapping Foil Operating Beneath the Free Surface
title_sort investigation of submergence depth and wave induced effects on the performance of a fully passive energy harvesting flapping foil operating beneath the free surface
topic passive hydrofoil
submergence depth
two-phase flows
artificial compressibility
waves
url https://www.mdpi.com/2077-1312/11/8/1559
work_keys_str_mv AT nikospetikidis investigationofsubmergencedepthandwaveinducedeffectsontheperformanceofafullypassiveenergyharvestingflappingfoiloperatingbeneaththefreesurface
AT georgepapadakis investigationofsubmergencedepthandwaveinducedeffectsontheperformanceofafullypassiveenergyharvestingflappingfoiloperatingbeneaththefreesurface