Numerical investigation of the behaviour and performance of ships advancing through restricted shallow waters

Momchil Terziev, Tahsin Tezdogan, Elif Oguz, Tim Gourlay, Yigit Kemal Demirel, Atilla Incecik

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Upon entering shallow waters, ships experience a number of changes due to the hydrodynamic interaction between the hull and the seabed. Some of these changes are expressed in a pronounced increase in sinkage, trim and resistance. In this paper, a numerical study is performed on the Duisburg Test Case (DTC) container ship using Computational Fluid Dynamics (CFD), the Slender-Body theory and various empirical methods. A parametric comparison of the behaviour and performance estimation techniques in shallow waters for varying channel cross-sections and ship speeds is performed. The main objective of this research is to quantify the effect a step in the channel topography on ship sinkage, trim and resistance. Significant differences are shown in the computed parameters for the DTC advancing through dredged channels and conventional shallow water topographies. The different techniques employed show good agreement, especially in the low speed range.
LanguageEnglish
Pages185–215
Number of pages31
JournalJournal of Fluids and Structures
Volume76
Early online date28 Oct 2017
DOIs
Publication statusPublished - 31 Jan 2018

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Ships
Topography
Water
Containers
Computational fluid dynamics
Hydrodynamics

Keywords

  • ship squat
  • slender body theory
  • CFD
  • ship resistance
  • trim and sinkage

Cite this

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title = "Numerical investigation of the behaviour and performance of ships advancing through restricted shallow waters",
abstract = "Upon entering shallow waters, ships experience a number of changes due to the hydrodynamic interaction between the hull and the seabed. Some of these changes are expressed in a pronounced increase in sinkage, trim and resistance. In this paper, a numerical study is performed on the Duisburg Test Case (DTC) container ship using Computational Fluid Dynamics (CFD), the Slender-Body theory and various empirical methods. A parametric comparison of the behaviour and performance estimation techniques in shallow waters for varying channel cross-sections and ship speeds is performed. The main objective of this research is to quantify the effect a step in the channel topography on ship sinkage, trim and resistance. Significant differences are shown in the computed parameters for the DTC advancing through dredged channels and conventional shallow water topographies. The different techniques employed show good agreement, especially in the low speed range.",
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Numerical investigation of the behaviour and performance of ships advancing through restricted shallow waters. / Terziev, Momchil; Tezdogan, Tahsin; Oguz, Elif; Gourlay, Tim; Demirel, Yigit Kemal; Incecik, Atilla.

In: Journal of Fluids and Structures, Vol. 76, 31.01.2018, p. 185–215.

Research output: Contribution to journalArticle

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AU - Tezdogan, Tahsin

AU - Oguz, Elif

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AU - Demirel, Yigit Kemal

AU - Incecik, Atilla

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