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Powering smart pipes with fluid flow: Effect of velocity profiles

Mikail F. Lumentut, Michael Friswell

Computers & Structures, Volume: 258, Start page: 106680

Swansea University Author: Michael Friswell

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DOI (Published version): 10.1016/j.compstruc.2021.106680

Abstract

The dynamics of elastic cantilevered smart pipes conveying fluid with non-uniform flow velocity profiles is presented for optimal power generation. The Navier-Stokes equations are used to model the incompressible flow in the circular smart pipe, and flow profile modification factors are formulated b...

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Published in: Computers & Structures
ISSN: 0045-7949
Published: Elsevier BV 2022
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URI: https://cronfa.swan.ac.uk/Record/cronfa58130
first_indexed 2021-09-28T13:22:22Z
last_indexed 2021-10-26T03:24:19Z
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spelling 2021-10-25T16:45:50.7184948 v2 58130 2021-09-28 Powering smart pipes with fluid flow: Effect of velocity profiles 5894777b8f9c6e64bde3568d68078d40 Michael Friswell Michael Friswell true false 2021-09-28 The dynamics of elastic cantilevered smart pipes conveying fluid with non-uniform flow velocity profiles is presented for optimal power generation. The Navier-Stokes equations are used to model the incompressible flow in the circular smart pipe, and flow profile modification factors are formulated based on the Reynolds number and Darcy friction factor. The coupled constitutive dynamic equations, including the electrical circuit, are formulated for laminar and turbulent flows. Due to viscosity in a real fluid, non-uniform flow profiles induce dynamic stability and instability phenomena that affect the generated power. The system consists of an elastic pipe with segmented smart material located on the circumference and longitudinal regions, the circuit, and the electromechanical components. The modified coupled constitutive equations are solved using the weak form extended Ritz method. For faster convergence, this model is reduced from the exact solution of the pipe structure with proof mass offset. Initial validation with a uniform flow profile from previous work is conducted. With increasing flow velocity, the optimal power output and their frequency shifts are investigated both with and without the flow profile modification factors, to identify the level of instability. Further parametric studies with and without flow pulsation and base excitation are given. Journal Article Computers & Structures 258 106680 Elsevier BV 0045-7949 Energy harvesting, Fluid-structure interactions, Internal flow, Multi-physical system, Non-uniform flow profile, Piezoelectricity 1 1 2022 2022-01-01 10.1016/j.compstruc.2021.106680 COLLEGE NANME COLLEGE CODE Swansea University 2021-10-25T16:45:50.7184948 2021-09-28T14:20:08.4381642 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Mikail F. Lumentut 1 Michael Friswell 2 58130__21298__b77f4762a9d5430c8daee58aa88ccd07.pdf 58130.pdf 2021-10-25T16:43:48.1404625 Output 5496233 application/pdf Version of Record true 2022-09-24T00:00:00.0000000 ©2021 All rights reserved. All article content, except where otherwise noted, is licensed under a Creative Commons Attribution Non-Commercial No Derivatives License (CC-BY-NC-ND) true eng https://creativecommons.org/licenses/by-nc-nd/4.0/
title Powering smart pipes with fluid flow: Effect of velocity profiles
spellingShingle Powering smart pipes with fluid flow: Effect of velocity profiles
Michael Friswell
title_short Powering smart pipes with fluid flow: Effect of velocity profiles
title_full Powering smart pipes with fluid flow: Effect of velocity profiles
title_fullStr Powering smart pipes with fluid flow: Effect of velocity profiles
title_full_unstemmed Powering smart pipes with fluid flow: Effect of velocity profiles
title_sort Powering smart pipes with fluid flow: Effect of velocity profiles
author_id_str_mv 5894777b8f9c6e64bde3568d68078d40
author_id_fullname_str_mv 5894777b8f9c6e64bde3568d68078d40_***_Michael Friswell
author Michael Friswell
author2 Mikail F. Lumentut
Michael Friswell
format Journal article
container_title Computers & Structures
container_volume 258
container_start_page 106680
publishDate 2022
institution Swansea University
issn 0045-7949
doi_str_mv 10.1016/j.compstruc.2021.106680
publisher Elsevier BV
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
active_str 0
description The dynamics of elastic cantilevered smart pipes conveying fluid with non-uniform flow velocity profiles is presented for optimal power generation. The Navier-Stokes equations are used to model the incompressible flow in the circular smart pipe, and flow profile modification factors are formulated based on the Reynolds number and Darcy friction factor. The coupled constitutive dynamic equations, including the electrical circuit, are formulated for laminar and turbulent flows. Due to viscosity in a real fluid, non-uniform flow profiles induce dynamic stability and instability phenomena that affect the generated power. The system consists of an elastic pipe with segmented smart material located on the circumference and longitudinal regions, the circuit, and the electromechanical components. The modified coupled constitutive equations are solved using the weak form extended Ritz method. For faster convergence, this model is reduced from the exact solution of the pipe structure with proof mass offset. Initial validation with a uniform flow profile from previous work is conducted. With increasing flow velocity, the optimal power output and their frequency shifts are investigated both with and without the flow profile modification factors, to identify the level of instability. Further parametric studies with and without flow pulsation and base excitation are given.
published_date 2022-01-01T07:47:13Z
_version_ 1827370207966920704
score 11.05492

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