Soh, B, Pao, W and Chen, X orcid.org/0000-0002-2053-2448 (2017) Numerical analyses for improved terminal velocity of deep water torpedo anchor. International Journal of Numerical Methods for Heat & Fluid Flow, 27 (2). pp. 428-443. ISSN 0961-5539
Abstract
Purpose: This research aims to investigate the effects of manipulation of a torpedo’s geometries to attain higher terminal velocity. The parameters of interest include geometric changes of the original design, as well as sea water properties that reflect water depth in South China Sea. Design/methodology/approach: The research make use of computational fluid dynamics (CFD) software, FLUENT, to solve viscous incompressible Navier–Stokes equations with two equations k-epsilon turbulent model. The calculated drag coefficient is subsequently used to calculate the maximum attainable terminal velocity of the torpedo. Findings: It was found that the terminal velocity can be improved by sharper tip angle, greater aspect ratio, greater diameter ratio and optimum rear angle at 30°. Sensitivity of drag coefficient toward each of the parameters is established in this paper. Originality/value: The paper, in addition to verifying the importance of aspect ratio, has also established the tip angle, diameter ratio and rear angle of the torpedo as important geometric aspects that could be tuned to improve its terminal velocity.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © Emerald Publishing Limited 2017. This is an author produced version of a paper published in International Journal of Numerical Methods for Heat and Fluid Flow. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Drag coefficient, Deepwater, Hydrodynamic, Terminal velocity, Torpedo anchor |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 24 Nov 2017 11:44 |
Last Modified: | 16 Jan 2018 11:46 |
Status: | Published |
Publisher: | Emerald |
Identification Number: | 10.1108/HFF-09-2015-0349 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:122978 |