Numerical study on a KVLCC2 model advancing in shallow water

Zhi-Ming Yuan, Paula Kellett

Research output: Contribution to conferencePaper

Abstract

Due to the effects from the bottom of the waterway, advancing ships will sink deeper in shallow water than in deep water. This is known as squat effect, which increases with the speed of the vessel. The aim of the present paper is to provide a numerical method to predict the shallow water effects. The 3-D boundary element method is firstly applied to simulate a KVLCC2 model advancing in confined water. The wave-making resistance, as well as the sinkage and trim are calculated at different water depths. In order to verify the predictions from BEM program, CFD calculations in deep water will also be conducted and compared. Special efforts are made to calculate the wave elevations. The wave profiles at different water depths and distances are calculated. The comparisons between shallow water and deep water, as well as between the BEM and CFD programs, are also discussed in the present paper. Additionally, some comparison of the wave profiles with available experimental results is presented for validation of the approaches.

Conference

Conference9th International Workshop on Ship and Marine Hydrodynamics
Abbreviated titleIWSH2015
CountryUnited Kingdom
CityGlasgow
Period25/08/1528/08/15
Internet address

Fingerprint

Water
Computational fluid dynamics
Boundary element method
Numerical methods
Ships

Keywords

  • shallow water effects
  • squat
  • boundary element method
  • CFD
  • wave patterns
  • KVLCC2

Cite this

Yuan, Z-M., & Kellett, P. (2015). Numerical study on a KVLCC2 model advancing in shallow water. Paper presented at 9th International Workshop on Ship and Marine Hydrodynamics, Glasgow, United Kingdom.
Yuan, Zhi-Ming ; Kellett, Paula. / Numerical study on a KVLCC2 model advancing in shallow water. Paper presented at 9th International Workshop on Ship and Marine Hydrodynamics, Glasgow, United Kingdom.10 p.
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abstract = "Due to the effects from the bottom of the waterway, advancing ships will sink deeper in shallow water than in deep water. This is known as squat effect, which increases with the speed of the vessel. The aim of the present paper is to provide a numerical method to predict the shallow water effects. The 3-D boundary element method is firstly applied to simulate a KVLCC2 model advancing in confined water. The wave-making resistance, as well as the sinkage and trim are calculated at different water depths. In order to verify the predictions from BEM program, CFD calculations in deep water will also be conducted and compared. Special efforts are made to calculate the wave elevations. The wave profiles at different water depths and distances are calculated. The comparisons between shallow water and deep water, as well as between the BEM and CFD programs, are also discussed in the present paper. Additionally, some comparison of the wave profiles with available experimental results is presented for validation of the approaches.",
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author = "Zhi-Ming Yuan and Paula Kellett",
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note = "9th International Workshop on Ship and Marine Hydrodynamics, IWSH2015 ; Conference date: 25-08-2015 Through 28-08-2015",
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Yuan, Z-M & Kellett, P 2015, 'Numerical study on a KVLCC2 model advancing in shallow water' Paper presented at 9th International Workshop on Ship and Marine Hydrodynamics, Glasgow, United Kingdom, 25/08/15 - 28/08/15, .

Numerical study on a KVLCC2 model advancing in shallow water. / Yuan, Zhi-Ming; Kellett, Paula.

2015. Paper presented at 9th International Workshop on Ship and Marine Hydrodynamics, Glasgow, United Kingdom.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Numerical study on a KVLCC2 model advancing in shallow water

AU - Yuan, Zhi-Ming

AU - Kellett, Paula

PY - 2015/8

Y1 - 2015/8

N2 - Due to the effects from the bottom of the waterway, advancing ships will sink deeper in shallow water than in deep water. This is known as squat effect, which increases with the speed of the vessel. The aim of the present paper is to provide a numerical method to predict the shallow water effects. The 3-D boundary element method is firstly applied to simulate a KVLCC2 model advancing in confined water. The wave-making resistance, as well as the sinkage and trim are calculated at different water depths. In order to verify the predictions from BEM program, CFD calculations in deep water will also be conducted and compared. Special efforts are made to calculate the wave elevations. The wave profiles at different water depths and distances are calculated. The comparisons between shallow water and deep water, as well as between the BEM and CFD programs, are also discussed in the present paper. Additionally, some comparison of the wave profiles with available experimental results is presented for validation of the approaches.

AB - Due to the effects from the bottom of the waterway, advancing ships will sink deeper in shallow water than in deep water. This is known as squat effect, which increases with the speed of the vessel. The aim of the present paper is to provide a numerical method to predict the shallow water effects. The 3-D boundary element method is firstly applied to simulate a KVLCC2 model advancing in confined water. The wave-making resistance, as well as the sinkage and trim are calculated at different water depths. In order to verify the predictions from BEM program, CFD calculations in deep water will also be conducted and compared. Special efforts are made to calculate the wave elevations. The wave profiles at different water depths and distances are calculated. The comparisons between shallow water and deep water, as well as between the BEM and CFD programs, are also discussed in the present paper. Additionally, some comparison of the wave profiles with available experimental results is presented for validation of the approaches.

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KW - squat

KW - boundary element method

KW - CFD

KW - wave patterns

KW - KVLCC2

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UR - http://server02.smt.strath.ac.uk/1Call for Paper.htm

M3 - Paper

ER -

Yuan Z-M, Kellett P. Numerical study on a KVLCC2 model advancing in shallow water. 2015. Paper presented at 9th International Workshop on Ship and Marine Hydrodynamics, Glasgow, United Kingdom.