A two-dimensional investigation of greenwater overtopping of simplified vessels

Xiantao Zhang

Research output: ThesisDoctoral Thesis

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Abstract

This thesis explores the underlying physics of greenwater overtopping for scenarios of increasing complexity from (i) a fixed rectangular box; to (ii) a fixed box with a bow flare angle; and (iii) a floating rectangular box, using Computational Fluid Dynamics (CFD), supported with additional numerical tools. The results suggest that there is practical value in both CFD and in modifying the classical dam break models to better understand and predict the evolution and damage potential of greenwater. CFD models have the advantage of high resolution, so as to explore aspects of overtopping in detail, whilst dam break models are efficient and can be inserted into existing composite engineering methods to screen large sets of metocean conditions and identify critical design sea states for refined numerical modelling or model testing.
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • The University of Western Australia
Thesis sponsors
Award date18 Feb 2019
DOIs
Publication statusUnpublished - 2019

Fingerprint

Computational fluid dynamics
Dams
Dynamic models
Physics
Composite materials
Testing

Cite this

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title = "A two-dimensional investigation of greenwater overtopping of simplified vessels",
abstract = "This thesis explores the underlying physics of greenwater overtopping for scenarios of increasing complexity from (i) a fixed rectangular box; to (ii) a fixed box with a bow flare angle; and (iii) a floating rectangular box, using Computational Fluid Dynamics (CFD), supported with additional numerical tools. The results suggest that there is practical value in both CFD and in modifying the classical dam break models to better understand and predict the evolution and damage potential of greenwater. CFD models have the advantage of high resolution, so as to explore aspects of overtopping in detail, whilst dam break models are efficient and can be inserted into existing composite engineering methods to screen large sets of metocean conditions and identify critical design sea states for refined numerical modelling or model testing.",
keywords = "greenwater overtopping, dam break model, Computational fluid dynamics, Shallow water equations, overtopping duration, bow flare angle, vessel motion",
author = "Xiantao Zhang",
year = "2019",
doi = "10.26182/5c9454939f7aa",
language = "English",
school = "The University of Western Australia",

}

Zhang, X 2019, 'A two-dimensional investigation of greenwater overtopping of simplified vessels', Doctor of Philosophy, The University of Western Australia. https://doi.org/10.26182/5c9454939f7aa

A two-dimensional investigation of greenwater overtopping of simplified vessels. / Zhang, Xiantao.

2019.

Research output: ThesisDoctoral Thesis

TY - THES

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AU - Zhang, Xiantao

PY - 2019

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N2 - This thesis explores the underlying physics of greenwater overtopping for scenarios of increasing complexity from (i) a fixed rectangular box; to (ii) a fixed box with a bow flare angle; and (iii) a floating rectangular box, using Computational Fluid Dynamics (CFD), supported with additional numerical tools. The results suggest that there is practical value in both CFD and in modifying the classical dam break models to better understand and predict the evolution and damage potential of greenwater. CFD models have the advantage of high resolution, so as to explore aspects of overtopping in detail, whilst dam break models are efficient and can be inserted into existing composite engineering methods to screen large sets of metocean conditions and identify critical design sea states for refined numerical modelling or model testing.

AB - This thesis explores the underlying physics of greenwater overtopping for scenarios of increasing complexity from (i) a fixed rectangular box; to (ii) a fixed box with a bow flare angle; and (iii) a floating rectangular box, using Computational Fluid Dynamics (CFD), supported with additional numerical tools. The results suggest that there is practical value in both CFD and in modifying the classical dam break models to better understand and predict the evolution and damage potential of greenwater. CFD models have the advantage of high resolution, so as to explore aspects of overtopping in detail, whilst dam break models are efficient and can be inserted into existing composite engineering methods to screen large sets of metocean conditions and identify critical design sea states for refined numerical modelling or model testing.

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KW - bow flare angle

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