Prediction of the side drift force of full ships advancing in waves at low speeds
In this study, we analyze the experimental results of the mean sway (side drift) forces of six full type ships at low speeds in regular waves of various directions and compare them with numerical results of the in-house 3D panel code NEWDRIFT. It is noted that the mean sway force is most significant...
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sg-ntu-dr.10356-1453052023-03-04T17:24:27Z Prediction of the side drift force of full ships advancing in waves at low speeds Liu, Shukui Papanikolaou, Apostolos School of Mechanical and Aerospace Engineering Engineering::Mechanical engineering Second Order Steady Sway Wave Force Side Drift Force In this study, we analyze the experimental results of the mean sway (side drift) forces of six full type ships at low speeds in regular waves of various directions and compare them with numerical results of the in-house 3D panel code NEWDRIFT. It is noted that the mean sway force is most significant in relatively short waves, with the peak being observed at λ/LPP ≈ 0.5–0.6. For λ/LPP > 1.0, the corresponding value is rather small. We also observe a solid recurring pattern of the mean sway force acting on the analyzed full type ships. On this basis, we proceed to approximate the mean sway force with an empirical formula, in which only the main ship particulars and wave parameters are used. Preliminary validation results show that the developed empirical formula, which is readily applicable in practice, can accurately predict the mean sway force acting on a full ship, at both zero and non-zero speeds. Nanyang Technological University Published version This study was conducted in the framework of the internally funded bilateral research project “Assessment of the Manoeuvering Performance of a Ship in a Seaway” of NTU and NTUA. 2020-12-17T01:40:25Z 2020-12-17T01:40:25Z 2020 Journal Article Liu, S., & Papanikolaou, A. (2020). Prediction of the side drift force of full ships advancing in waves at low speeds. Journal of Marine Science and Engineering, 8(5), 377-. doi:10.3390/jmse8050377 2077-1312 https://hdl.handle.net/10356/145305 10.3390/jmse8050377 5 8 en Journal of Marine Science and Engineering © 2020 The Authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). application/pdf |
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Engineering::Mechanical engineering Second Order Steady Sway Wave Force Side Drift Force Liu, Shukui Papanikolaou, Apostolos Prediction of the side drift force of full ships advancing in waves at low speeds |
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In this study, we analyze the experimental results of the mean sway (side drift) forces of six full type ships at low speeds in regular waves of various directions and compare them with numerical results of the in-house 3D panel code NEWDRIFT. It is noted that the mean sway force is most significant in relatively short waves, with the peak being observed at λ/LPP ≈ 0.5–0.6. For λ/LPP > 1.0, the corresponding value is rather small. We also observe a solid recurring pattern of the mean sway force acting on the analyzed full type ships. On this basis, we proceed to approximate the mean sway force with an empirical formula, in which only the main ship particulars and wave parameters are used. Preliminary validation results show that the developed empirical formula, which is readily applicable in practice, can accurately predict the mean sway force acting on a full ship, at both zero and non-zero speeds. |
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School of Mechanical and Aerospace Engineering |
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School of Mechanical and Aerospace Engineering Liu, Shukui Papanikolaou, Apostolos |
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Article |
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Liu, Shukui Papanikolaou, Apostolos |
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Liu, Shukui |
title |
Prediction of the side drift force of full ships advancing in waves at low speeds |
title_short |
Prediction of the side drift force of full ships advancing in waves at low speeds |
title_full |
Prediction of the side drift force of full ships advancing in waves at low speeds |
title_fullStr |
Prediction of the side drift force of full ships advancing in waves at low speeds |
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Prediction of the side drift force of full ships advancing in waves at low speeds |
title_sort |
prediction of the side drift force of full ships advancing in waves at low speeds |
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2020 |
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https://hdl.handle.net/10356/145305 |
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