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Accuracy of Potential Flow Methods to Solve Real-time Ship-Tug Interaction Effects within Ship Handling Simulators.pdf (868.18 kB)

Accuracy of potential flow methods to solve realtime ship-tug interaction effects within ship handling simulators

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posted on 2023-05-18, 06:47 authored by Buddhika Sembukutti Vidanelage, Susantha RanmuthugalaSusantha Ranmuthugala, Shuhong ChaiShuhong Chai, Jiangang FeiJiangang Fei
The hydrodynamic interaction effects between two vessels that are significantly different in size operating in close proximity can adversely affect the safety and handling of these vessels. Many ship handling simulator designers implement Potential Flow (PF) solvers to calculate real‐time interaction effects. However, these PF solvers struggle to accurately predict the complicated flow regimes that can occur, for example as the flow passes a wet transom hull or one with a drift angle. When it comes to predicting the interaction effects on a tug during a ship assist, it is essential to consider the rapid changes of the tug’s drift angle, as the hull acts against the inflow creating a complicated flow regime. This paper investigates the ability of the commercial PF solver, Futureship®, to predict the accurate interaction effects acting on tugs operating at a drift angle during ship handling operations through a case study. This includes a comparison against Computation Fluid Dynamics (CFD) simulations and captive model tests to examine the suitability of the PF method for such duties. Although the PF solver can be tuned to solve streamline bodies, it needs further improvement to deal with hulls at drift angles.

History

Publication title

TransNav: the International Journal on Marine Navigation and Safety of Sea Transportation

Volume

8

Issue

4

Pagination

497-504

ISSN

2083-6481

Department/School

Australian Maritime College

Publisher

Faculty of Navigation, Gdynia Maritime University

Place of publication

Gdynia, Poland

Rights statement

Licensed under Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0) http://creativecommons.org/licenses/by-nc/3.0/

Repository Status

  • Open

Socio-economic Objectives

Water transport not elsewhere classified

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