A Low Cost Oscillating Membrane for Underwater Applications at Low Reynolds Numbers

Active surface morphing is a nonintrusive flow control technique that can delay separation in laminar and turbulent boundary layers. Most of the experimental studies of such control strategy have been carried out in wind tunnels at low Reynolds numbers with costly actuators. In contrast, the impleme...
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Autor*in:	Abel Arredondo-Galeana [verfasserIn] Aristides Kiprakis [verfasserIn] Ignazio Maria Viola [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2022

Schlagwörter:	magnetoelastic membrane surface morphing flow separation active control

Übergeordnetes Werk:	In: Journal of Marine Science and Engineering - MDPI AG, 2014, 10(2022), 1, p 77
Übergeordnetes Werk:	volume:10 ; year:2022 ; number:1, p 77

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/jmse10010077

Katalog-ID:	DOAJ075031493

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language	English
source	In Journal of Marine Science and Engineering 10(2022), 1, p 77 volume:10 year:2022 number:1, p 77
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topic_facet	magnetoelastic membrane surface morphing flow separation active control Naval architecture. Shipbuilding. Marine engineering Oceanography
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container_title	Journal of Marine Science and Engineering
authorswithroles_txt_mv	Abel Arredondo-Galeana @@aut@@ Aristides Kiprakis @@aut@@ Ignazio Maria Viola @@aut@@
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callnumber-first	V - Naval Science
author	Abel Arredondo-Galeana
spellingShingle	Abel Arredondo-Galeana misc VM1-989 misc GC1-1581 misc magnetoelastic membrane misc surface morphing misc flow separation misc active control misc Naval architecture. Shipbuilding. Marine engineering misc Oceanography A Low Cost Oscillating Membrane for Underwater Applications at Low Reynolds Numbers
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topic_title	VM1-989 GC1-1581 A Low Cost Oscillating Membrane for Underwater Applications at Low Reynolds Numbers magnetoelastic membrane surface morphing flow separation active control
topic	misc VM1-989 misc GC1-1581 misc magnetoelastic membrane misc surface morphing misc flow separation misc active control misc Naval architecture. Shipbuilding. Marine engineering misc Oceanography
topic_unstemmed	misc VM1-989 misc GC1-1581 misc magnetoelastic membrane misc surface morphing misc flow separation misc active control misc Naval architecture. Shipbuilding. Marine engineering misc Oceanography
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title	A Low Cost Oscillating Membrane for Underwater Applications at Low Reynolds Numbers
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title_full	A Low Cost Oscillating Membrane for Underwater Applications at Low Reynolds Numbers
author_sort	Abel Arredondo-Galeana
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title_sort	low cost oscillating membrane for underwater applications at low reynolds numbers
callnumber	VM1-989
title_auth	A Low Cost Oscillating Membrane for Underwater Applications at Low Reynolds Numbers
abstract	Active surface morphing is a nonintrusive flow control technique that can delay separation in laminar and turbulent boundary layers. Most of the experimental studies of such control strategy have been carried out in wind tunnels at low Reynolds numbers with costly actuators. In contrast, the implementation of such a control strategy at low cost for an underwater environment remains vastly unexplored. This paper explores active surface morphing at low cost and at low Reynolds for underwater applications. We do this with a 3D printed foil submerged in a water tunnel. The suction surface of the foil is covered with a magnetoelastic membrane. The membrane is actuated via two electromagnets that are positioned inside of the foil. Three actuation frequencies (slow, intermediate, fast) are tested and the deformation of the membrane is measured with an optosensor. We show that lift increases by 1%, whilst drag decreases by 6% at a Strouhal number of 0.3, i.e., at the fast actuation case. We demonstrate that surface actuation is applicable to the marine environment through an off the shelf approach, and that this method is more economical than existing active surface morphing technologies. Since the actuation mechanism is not energy intensive, it is envisioned that it could be applied to marine energy devices, boat appendages, and autonomous underwater vehicles.
abstractGer	Active surface morphing is a nonintrusive flow control technique that can delay separation in laminar and turbulent boundary layers. Most of the experimental studies of such control strategy have been carried out in wind tunnels at low Reynolds numbers with costly actuators. In contrast, the implementation of such a control strategy at low cost for an underwater environment remains vastly unexplored. This paper explores active surface morphing at low cost and at low Reynolds for underwater applications. We do this with a 3D printed foil submerged in a water tunnel. The suction surface of the foil is covered with a magnetoelastic membrane. The membrane is actuated via two electromagnets that are positioned inside of the foil. Three actuation frequencies (slow, intermediate, fast) are tested and the deformation of the membrane is measured with an optosensor. We show that lift increases by 1%, whilst drag decreases by 6% at a Strouhal number of 0.3, i.e., at the fast actuation case. We demonstrate that surface actuation is applicable to the marine environment through an off the shelf approach, and that this method is more economical than existing active surface morphing technologies. Since the actuation mechanism is not energy intensive, it is envisioned that it could be applied to marine energy devices, boat appendages, and autonomous underwater vehicles.
abstract_unstemmed	Active surface morphing is a nonintrusive flow control technique that can delay separation in laminar and turbulent boundary layers. Most of the experimental studies of such control strategy have been carried out in wind tunnels at low Reynolds numbers with costly actuators. In contrast, the implementation of such a control strategy at low cost for an underwater environment remains vastly unexplored. This paper explores active surface morphing at low cost and at low Reynolds for underwater applications. We do this with a 3D printed foil submerged in a water tunnel. The suction surface of the foil is covered with a magnetoelastic membrane. The membrane is actuated via two electromagnets that are positioned inside of the foil. Three actuation frequencies (slow, intermediate, fast) are tested and the deformation of the membrane is measured with an optosensor. We show that lift increases by 1%, whilst drag decreases by 6% at a Strouhal number of 0.3, i.e., at the fast actuation case. We demonstrate that surface actuation is applicable to the marine environment through an off the shelf approach, and that this method is more economical than existing active surface morphing technologies. Since the actuation mechanism is not energy intensive, it is envisioned that it could be applied to marine energy devices, boat appendages, and autonomous underwater vehicles.
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container_issue	1, p 77
title_short	A Low Cost Oscillating Membrane for Underwater Applications at Low Reynolds Numbers
url	https://doi.org/10.3390/jmse10010077 https://doaj.org/article/66f5b5b0c3f549d098f44865986110b2 https://www.mdpi.com/2077-1312/10/1/77 https://doaj.org/toc/2077-1312
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author2	Aristides Kiprakis Ignazio Maria Viola
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