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...

Full description

Saved in:
Bibliographic Details
Main Authors: Liu, Shukui, Papanikolaou, Apostolos
Other Authors: School of Mechanical and Aerospace Engineering
Format: Article
Language:English
Published: 2020
Subjects:
Online Access:https://hdl.handle.net/10356/145305
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-145305
record_format dspace
spelling 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
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Mechanical engineering
Second Order Steady Sway Wave Force
Side Drift Force
spellingShingle 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
description 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.
author2 School of Mechanical and Aerospace Engineering
author_facet School of Mechanical and Aerospace Engineering
Liu, Shukui
Papanikolaou, Apostolos
format Article
author Liu, Shukui
Papanikolaou, Apostolos
author_sort 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
title_full_unstemmed 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
publishDate 2020
url https://hdl.handle.net/10356/145305
_version_ 1759854830369636352