Numerical analyses for improved terminal velocity of deep water torpedo anchor
International Journal of Numerical Methods for Heat and Fluid Flow, ISSN: 0961-5539, Vol: 27, Issue: 2, Page: 428-443
2017
- 14Citations
- 9Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Article Description
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.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85012965204&origin=inward; http://dx.doi.org/10.1108/hff-09-2015-0349; https://www.emerald.com/insight/content/doi/10.1108/HFF-09-2015-0349/full/html; https://www.emerald.com/insight/content/doi/10.1108/HFF-09-2015-0349/full/xml; http://www.emeraldinsight.com/doi/10.1108/HFF-09-2015-0349; http://www.emeraldinsight.com/doi/full/10.1108/HFF-09-2015-0349; http://www.emeraldinsight.com/doi/full-xml/10.1108/HFF-09-2015-0349
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