Fractal-induced 2D flexible net undulation

Abstract A net immersed in fractal-induced turbulence exhibit a transient time-varying deformation. The anisotropic, inhomogeneous square fractal grid (SFG) generated flow interacts with the flexible net to manifest as visible cross-sectional undulations. We hypothesize that the net’s response may p...

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Autores principales:	Michael Joon Seng Goh, Yeong Shiong Chiew, Ji Jinn Foo
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7e32ee641a204571b07624119cdd40cd
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spelling	oai:doaj.org-article:7e32ee641a204571b07624119cdd40cd2021-12-02T13:26:50ZFractal-induced 2D flexible net undulation10.1038/s41598-021-86418-52045-2322https://doaj.org/article/7e32ee641a204571b07624119cdd40cd2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-86418-5https://doaj.org/toc/2045-2322Abstract A net immersed in fractal-induced turbulence exhibit a transient time-varying deformation. The anisotropic, inhomogeneous square fractal grid (SFG) generated flow interacts with the flexible net to manifest as visible cross-sectional undulations. We hypothesize that the net’s response may provide a surrogate in expressing local turbulent strength. This is analysed as root-mean-squared velocity fluctuations in the net, displaying intensity patterns dependent on the grid conformation and grid-net separation. The net’s fluctuation strength is found to increase closer to the turbulator with higher thickness ratio while presenting stronger fluctuations compared to regular-square-grid (RSG) of equivalent blockage-ratio, σ. Our findings demonstrate a novel application where 3D-reconstruction of submerged nets is used to experimentally contrast the turbulence generated by RSG and multilength scale SFGs across the channel cross-section. The net’s response shows the unique turbulence developed from SFGs can induce 9 × higher average excitation to a net when compared against RSG of similar σ.Michael Joon Seng GohYeong Shiong ChiewJi Jinn FooNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Michael Joon Seng Goh Yeong Shiong Chiew Ji Jinn Foo Fractal-induced 2D flexible net undulation
description	Abstract A net immersed in fractal-induced turbulence exhibit a transient time-varying deformation. The anisotropic, inhomogeneous square fractal grid (SFG) generated flow interacts with the flexible net to manifest as visible cross-sectional undulations. We hypothesize that the net’s response may provide a surrogate in expressing local turbulent strength. This is analysed as root-mean-squared velocity fluctuations in the net, displaying intensity patterns dependent on the grid conformation and grid-net separation. The net’s fluctuation strength is found to increase closer to the turbulator with higher thickness ratio while presenting stronger fluctuations compared to regular-square-grid (RSG) of equivalent blockage-ratio, σ. Our findings demonstrate a novel application where 3D-reconstruction of submerged nets is used to experimentally contrast the turbulence generated by RSG and multilength scale SFGs across the channel cross-section. The net’s response shows the unique turbulence developed from SFGs can induce 9 × higher average excitation to a net when compared against RSG of similar σ.
format	article
author	Michael Joon Seng Goh Yeong Shiong Chiew Ji Jinn Foo
author_facet	Michael Joon Seng Goh Yeong Shiong Chiew Ji Jinn Foo
author_sort	Michael Joon Seng Goh
title	Fractal-induced 2D flexible net undulation
title_short	Fractal-induced 2D flexible net undulation
title_full	Fractal-induced 2D flexible net undulation
title_fullStr	Fractal-induced 2D flexible net undulation
title_full_unstemmed	Fractal-induced 2D flexible net undulation
title_sort	fractal-induced 2d flexible net undulation
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/7e32ee641a204571b07624119cdd40cd
work_keys_str_mv	AT michaeljoonsenggoh fractalinduced2dflexiblenetundulation AT yeongshiongchiew fractalinduced2dflexiblenetundulation AT jijinnfoo fractalinduced2dflexiblenetundulation
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Fractal-induced 2D flexible net undulation

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