A numerical investigation of the drag forces on a fleet of underwater gliders

Land vehicle platooning improves the overall fuel economy of the fleet by decreasing its total air resistance. In this work, we investigate the drag forces on a five-glider fleet of underwater gliders, both in a conventional “V” and an alternative, more compact, 3D “V” formation. In addition, the ef...

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Main Authors: Prakasan, A., Ovinis, M., Javaid, M.Y.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.19618 /
Published: American Scientific Publishers 2017
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85015794902&doi=10.1166%2fasl.2017.8371&partnerID=40&md5=1dd77662e01428d6a1968d20b2512e8b
http://eprints.utp.edu.my/19618/
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spelling utp-eprints.196182018-04-20T07:16:40Z A numerical investigation of the drag forces on a fleet of underwater gliders Prakasan, A. Ovinis, M. Javaid, M.Y. Land vehicle platooning improves the overall fuel economy of the fleet by decreasing its total air resistance. In this work, we investigate the drag forces on a five-glider fleet of underwater gliders, both in a conventional “V” and an alternative, more compact, 3D “V” formation. In addition, the effect of transverse, longitudinal and vertical separation of these gliders on the drag forces is studied. Our study uses ANSYS Fluent with Re- Normalization Group (RNG) k-epsilon model with non-equilibrium wall function as the turbulence model. Based on the simulation results, a low drag of 2.7 N, similar that achieved in a “V” formation, can be achieved with the more compact 3D “V” formation, which has a smaller footprint. The lowest drag was achieved at 1.1 m longitudinal and transverse separation with 0.2 m vertical separation for a 1.03 m glider with a 0.28 m diameter and 0.98 m wingspan. © 2017 American Scientific Publishers All rights reserved. American Scientific Publishers 2017 Article PeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85015794902&doi=10.1166%2fasl.2017.8371&partnerID=40&md5=1dd77662e01428d6a1968d20b2512e8b Prakasan, A. and Ovinis, M. and Javaid, M.Y. (2017) A numerical investigation of the drag forces on a fleet of underwater gliders. Advanced Science Letters, 23 (2). pp. 1272-1276. http://eprints.utp.edu.my/19618/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Land vehicle platooning improves the overall fuel economy of the fleet by decreasing its total air resistance. In this work, we investigate the drag forces on a five-glider fleet of underwater gliders, both in a conventional “V” and an alternative, more compact, 3D “V” formation. In addition, the effect of transverse, longitudinal and vertical separation of these gliders on the drag forces is studied. Our study uses ANSYS Fluent with Re- Normalization Group (RNG) k-epsilon model with non-equilibrium wall function as the turbulence model. Based on the simulation results, a low drag of 2.7 N, similar that achieved in a “V” formation, can be achieved with the more compact 3D “V” formation, which has a smaller footprint. The lowest drag was achieved at 1.1 m longitudinal and transverse separation with 0.2 m vertical separation for a 1.03 m glider with a 0.28 m diameter and 0.98 m wingspan. © 2017 American Scientific Publishers All rights reserved.
format Article
author Prakasan, A.
Ovinis, M.
Javaid, M.Y.
spellingShingle Prakasan, A.
Ovinis, M.
Javaid, M.Y.
A numerical investigation of the drag forces on a fleet of underwater gliders
author_sort Prakasan, A.
title A numerical investigation of the drag forces on a fleet of underwater gliders
title_short A numerical investigation of the drag forces on a fleet of underwater gliders
title_full A numerical investigation of the drag forces on a fleet of underwater gliders
title_fullStr A numerical investigation of the drag forces on a fleet of underwater gliders
title_full_unstemmed A numerical investigation of the drag forces on a fleet of underwater gliders
title_sort numerical investigation of the drag forces on a fleet of underwater gliders
publisher American Scientific Publishers
publishDate 2017
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85015794902&doi=10.1166%2fasl.2017.8371&partnerID=40&md5=1dd77662e01428d6a1968d20b2512e8b
http://eprints.utp.edu.my/19618/
_version_ 1741196235841208320
score 11.62408

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