Design of a Portable Integrated Fluid–Structure Interaction-Based Piezoelectric Flag Energy-Harvesting System
Fluid–structure interaction-based energy-harvesting technology has gained significant attention due to its potential for energy conversion. However, most existing studies primarily focus on energy capture, resulting in incomplete systems with limited portability and a lack of integrated circuitry. T...
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| Language: | English |
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MDPI AG
2025-05-01
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| Series: | Fluids |
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| Online Access: | https://www.mdpi.com/2311-5521/10/5/121 |
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| author | Haochen Wang Xingrong Huang Zhe Li Le Fang |
| author_facet | Haochen Wang Xingrong Huang Zhe Li Le Fang |
| author_sort | Haochen Wang |
| collection | DOAJ |
| description | Fluid–structure interaction-based energy-harvesting technology has gained significant attention due to its potential for energy conversion. However, most existing studies primarily focus on energy capture, resulting in incomplete systems with limited portability and a lack of integrated circuitry. To address these limitations, this study presents a portable, integrated piezoelectric flag energy-harvesting system that achieves a complete closed-loop conversion from fluid kinetic energy, through structural strain energy, to electrical energy. The system utilizes an upstream bluff body to generate vortex-induced vibrations, a downstream support structure that maintains operational stability, and an internally integrated wiring channel that enables overall energy conversion. Charge–discharge experiments on the energy storage unit enable a comprehensive evaluation of system performance, marking the first efficiency measurement of a fully integrated energy-harvesting system. Experimental results demonstrate the first quantified map of losses across all conversion stages in a portable piezo-flag platform, highlighting the system’s potential for powering small-scale, low-power self-sustaining devices. This work establishes a reference framework and provides a novel technological pathway for advancing practical applications of fluid-induced energy harvesting, contributing to the development of autonomous power sources in various engineering fields. |
| format | Article |
| id | doaj-art-62f05bbec1294a9e9bb15f08bc2ebf9e |
| institution | OA Journals |
| issn | 2311-5521 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fluids |
| spelling | doaj-art-62f05bbec1294a9e9bb15f08bc2ebf9e2025-08-20T01:56:19ZengMDPI AGFluids2311-55212025-05-0110512110.3390/fluids10050121Design of a Portable Integrated Fluid–Structure Interaction-Based Piezoelectric Flag Energy-Harvesting SystemHaochen Wang0Xingrong Huang1Zhe Li2Le Fang3Ecole Centrale de Pékin, Beihang University, Beijing 100191, ChinaEcole Centrale de Pékin, Beihang University, Beijing 100191, ChinaEcole Centrale Nantes, CNRS, LHEEA, Nantes Université, UMR 6598, F-44000 Nantes, FranceEcole Centrale de Pékin, Beihang University, Beijing 100191, ChinaFluid–structure interaction-based energy-harvesting technology has gained significant attention due to its potential for energy conversion. However, most existing studies primarily focus on energy capture, resulting in incomplete systems with limited portability and a lack of integrated circuitry. To address these limitations, this study presents a portable, integrated piezoelectric flag energy-harvesting system that achieves a complete closed-loop conversion from fluid kinetic energy, through structural strain energy, to electrical energy. The system utilizes an upstream bluff body to generate vortex-induced vibrations, a downstream support structure that maintains operational stability, and an internally integrated wiring channel that enables overall energy conversion. Charge–discharge experiments on the energy storage unit enable a comprehensive evaluation of system performance, marking the first efficiency measurement of a fully integrated energy-harvesting system. Experimental results demonstrate the first quantified map of losses across all conversion stages in a portable piezo-flag platform, highlighting the system’s potential for powering small-scale, low-power self-sustaining devices. This work establishes a reference framework and provides a novel technological pathway for advancing practical applications of fluid-induced energy harvesting, contributing to the development of autonomous power sources in various engineering fields.https://www.mdpi.com/2311-5521/10/5/121piezoelectric flagfluid–structure interactionenergy harvestingvortex-induced vibrationself-sustaining power systemportable energy harvester |
| spellingShingle | Haochen Wang Xingrong Huang Zhe Li Le Fang Design of a Portable Integrated Fluid–Structure Interaction-Based Piezoelectric Flag Energy-Harvesting System Fluids piezoelectric flag fluid–structure interaction energy harvesting vortex-induced vibration self-sustaining power system portable energy harvester |
| title | Design of a Portable Integrated Fluid–Structure Interaction-Based Piezoelectric Flag Energy-Harvesting System |
| title_full | Design of a Portable Integrated Fluid–Structure Interaction-Based Piezoelectric Flag Energy-Harvesting System |
| title_fullStr | Design of a Portable Integrated Fluid–Structure Interaction-Based Piezoelectric Flag Energy-Harvesting System |
| title_full_unstemmed | Design of a Portable Integrated Fluid–Structure Interaction-Based Piezoelectric Flag Energy-Harvesting System |
| title_short | Design of a Portable Integrated Fluid–Structure Interaction-Based Piezoelectric Flag Energy-Harvesting System |
| title_sort | design of a portable integrated fluid structure interaction based piezoelectric flag energy harvesting system |
| topic | piezoelectric flag fluid–structure interaction energy harvesting vortex-induced vibration self-sustaining power system portable energy harvester |
| url | https://www.mdpi.com/2311-5521/10/5/121 |
| work_keys_str_mv | AT haochenwang designofaportableintegratedfluidstructureinteractionbasedpiezoelectricflagenergyharvestingsystem AT xingronghuang designofaportableintegratedfluidstructureinteractionbasedpiezoelectricflagenergyharvestingsystem AT zheli designofaportableintegratedfluidstructureinteractionbasedpiezoelectricflagenergyharvestingsystem AT lefang designofaportableintegratedfluidstructureinteractionbasedpiezoelectricflagenergyharvestingsystem |