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Performance analysis of flapping foil flow energy harvester mounted on piezoelectric transducer using meshfree particle method

Performance analysis of flapping foil flow energy harvester mounted on piezoelectric transducer using meshfree particle method
Performance analysis of flapping foil flow energy harvester mounted on piezoelectric transducer using meshfree particle method
Performance of a semi-active flapping foil flow energy harvester, coupled with a piezoelectric transducer has been analyzed in this work. The airfoil is mounted on a spring, damper and piezoelectric transducer arrangement in its translational mode. External excitation is imparted in pitch mode and system is allowed to oscillate in its translational mode as a result of unsteady fluid forces. A piezoelectric transducer is used as an electrical power converter. Flow around moving airfoil surface is solved on a meshfree nodal cloud using Radial Basis Function in Finite Difference Mode (RBF-FD). Fourth order Runge-Kutta Method is used for time marching solution of solid equations. Before the solution of complex Fluid-Structure Interaction problem, a parametric study is proposed to identify the values of kinematic, mechanical and geometric variables which could offer an improved energy harvesting performance. For this purpose, the problem is modelled as a coupled electromechanical system using Lagrange energy equations. Airfoil lift and pitching moment are formulated through Theodorson’s two dimensional thin-plate model and a parametric analysis is conducted to work out the optimized values of pivot location, pitch amplitude, spring stiffness and damping constant. The subsequent computational analysis resulted in an enhanced performance compared to the potential flow model with an efficiency of up to 27% based on total power extraction through the flow. Higher efficiency is obtained when the pitch axis is located aft of mid chord. However, this setting does not correspond to the maximum power output. Interestingly, power is maximized at …
1735-3572
1859-1872
Jamil, M.
6bc119cc-f5f7-44ed-ba94-67d991522666
Javed, Ali
651c9b09-c3dd-4ea0-a826-beb391e7f497
Shah, SIA
8911b209-7a2d-47e2-abf9-718e9f81980b
Mansoor, M.
8aeb87ec-a061-4d44-8654-1ec8ae2270ee
Hameed, A.
3f9583ac-c8ee-43ac-80f3-c267fa11f2c3
Djidjeli, Kamal
94ac4002-4170-495b-a443-74fde3b92998
Jamil, M.
6bc119cc-f5f7-44ed-ba94-67d991522666
Javed, Ali
651c9b09-c3dd-4ea0-a826-beb391e7f497
Shah, SIA
8911b209-7a2d-47e2-abf9-718e9f81980b
Mansoor, M.
8aeb87ec-a061-4d44-8654-1ec8ae2270ee
Hameed, A.
3f9583ac-c8ee-43ac-80f3-c267fa11f2c3
Djidjeli, Kamal
94ac4002-4170-495b-a443-74fde3b92998

Jamil, M., Javed, Ali, Shah, SIA, Mansoor, M., Hameed, A. and Djidjeli, Kamal (2020) Performance analysis of flapping foil flow energy harvester mounted on piezoelectric transducer using meshfree particle method. Journal of Applied Fluid Mechanics, 13 (6), 1859-1872. (doi:10.47176/jafm.13.06.31292).

Record type: Article

Abstract

Performance of a semi-active flapping foil flow energy harvester, coupled with a piezoelectric transducer has been analyzed in this work. The airfoil is mounted on a spring, damper and piezoelectric transducer arrangement in its translational mode. External excitation is imparted in pitch mode and system is allowed to oscillate in its translational mode as a result of unsteady fluid forces. A piezoelectric transducer is used as an electrical power converter. Flow around moving airfoil surface is solved on a meshfree nodal cloud using Radial Basis Function in Finite Difference Mode (RBF-FD). Fourth order Runge-Kutta Method is used for time marching solution of solid equations. Before the solution of complex Fluid-Structure Interaction problem, a parametric study is proposed to identify the values of kinematic, mechanical and geometric variables which could offer an improved energy harvesting performance. For this purpose, the problem is modelled as a coupled electromechanical system using Lagrange energy equations. Airfoil lift and pitching moment are formulated through Theodorson’s two dimensional thin-plate model and a parametric analysis is conducted to work out the optimized values of pivot location, pitch amplitude, spring stiffness and damping constant. The subsequent computational analysis resulted in an enhanced performance compared to the potential flow model with an efficiency of up to 27% based on total power extraction through the flow. Higher efficiency is obtained when the pitch axis is located aft of mid chord. However, this setting does not correspond to the maximum power output. Interestingly, power is maximized at …

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Performance Analysis of Flapping Foil Flow - Accepted Manuscript
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Accepted/In Press date: 16 May 2020
Published date: 2020

Identifiers

Local EPrints ID: 443332
URI: http://eprints.soton.ac.uk/id/eprint/443332
ISSN: 1735-3572
PURE UUID: 0e3ceca6-f45d-49c9-95ba-05316d46495c

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Date deposited: 20 Aug 2020 16:34
Last modified: 25 Nov 2021 19:35

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Contributors

Author: M. Jamil
Author: Ali Javed
Author: SIA Shah
Author: M. Mansoor
Author: A. Hameed
Author: Kamal Djidjeli

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