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Title
Experimental and numerical determination of the hydrodynamic coefficients of an autonomous underwater vehicle

ISSN printed: 1733-8670, ISSN on-line: 2392-0378
Sakaki, Abdollah1; Kerdabadi, Mohsen Sadeghian2
URI: https://repository.am.szczecin.pl/handle/123456789/2626
2020-06-29
Computational fluid dynamics (CFD) has progressed rapidly in the past fifty years and is now used in many industrial fields, such as air, space, and marine engineering. CFD has an irreplaceable role in marine design and scientific research, and its applications within this field continue to grow with the development of computers. CFD is used to quickly and inexpensively simulate fluid behaviour using the Reynolds Averaged Navier–Stokes (RANS) equations to calculate hydrodynamic coefficients, which are needed in manoeuvrability studies of underwater vehicles (UWV). Here, these computations are performed for six geometrical shapes that represent typical autonomous underwater vehicles (AUVs) currently in use. Resistance test simulations at up to 20o drift angles were conducted for AUVs with different length-to-diameter ratios. The results were compared with the experimental data and current quasi-experimental relationships, which suggested that the CFD predictions were adequately precise and accurate. These predictions indicated that there was a non-linear relationship between forces and moments and the lateral speed. Moreover, both linear and non-linear hydrodynamic coefficients were calculated.
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Title

Experimental and numerical determination of the hydrodynamic coefficients of an autonomous underwater vehicle

Pages

124-135

Figures

19

Tables

6

ISSN printed

1733-8670

ISSN on-line

2392-0378

DOI

10.17402/427

Type

Journal

62 Scientific Journals of the Maritime University of Szczecin, no. 62 / 2020

Publisher

Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie

Copyright Holder

Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie

Published

2020-06-29

Recieved

2019-02-24

Accepted

2020-06-23

Funding

No data

Keywords

Reynolds averaged Navier–Stokes, computational fluid dynamics, linear coefficients, non-linear coefficients, underwater vehicle

URI:

https://repository.am.szczecin.pl/handle/123456789/2626

Language

English

Authors

Sakaki, Abdollah1; Kerdabadi, Mohsen Sadeghian2

Affiliation

1 Amirkabir University of Technology, Tehran, Iran,
2 Amirkabir University of Technology, Tehran, Iran,

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