On the recent developments to the fast modelling of ship flooding for transient and steady-state stages in still water
Fast and reliable tools for simulating ship dynamics enable the prediction of the vessel behaviour, which is of vital importance for damage scenario simulations. This is relevant both at the design stage and for an operating ship in emergencies.This research study concerns numerical simulations of damaged ship dynamics, focusing on steady-state and transient stages of flooding in still water. Experimental data, available for the chosen case studies, enables relevant comparisons with the obtained numerical outcomes.In the first part of the paper, two fast approaches, named apparent gravity and mass exchange, are developed and applied for simulating the roll decay of a hull with a flooded compartment (steady-state stage of flooding). The current paper shows novel insights about the applicability of the apparent gravity method (flat non-horizontal free-surface assumption) and the novel development and implementation of the mass exchange method (flooded compartment virtually subdivided in two connected sub-compartments). The applications concern different filling levels and two different initial stability conditions.In the second part of the paper, a detailed study on flow rate models for transient stage flooding simulations is carried out, with particular effort on phenomena pertinent to the weir in submerged flow. Several approaches are applied and compared, showing the low sensitivity of the model to modest variations in the flow rate, except for the small initial stability condition.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/00298018
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Supplemental Notes:
- © 2022 Elsevier Ltd. All rights reserved. Abstract reprinted with permission of Elsevier.
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Authors:
- Acanfora, Maria
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0000-0002-0512-0904
- Martino, Riccardo
- Publication Date: 2022-2-1
Language
- English
Media Info
- Media Type: Web
- Features: Figures; References; Tables;
- Pagination: 110539
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Serial:
- Ocean Engineering
- Volume: 245
- Issue Number: 0
- Publisher: Pergamon
- ISSN: 0029-8018
- EISSN: 1873-5258
- Serial URL: http://www.sciencedirect.com/science/journal/00298018
Subject/Index Terms
- TRT Terms: Floods; Numerical analysis; Ships; Steady state; Vehicle dynamics
- Subject Areas: Marine Transportation; Vehicles and Equipment;
Filing Info
- Accession Number: 01834010
- Record Type: Publication
- Files: TRIS
- Created Date: Jan 25 2022 9:50AM