Numerical studies on non-linearity of added resistance and ship motions of KVLCC2 in short and long waves

Olgun Guven Hizir, Mingyu Kim, Osman Turan, Alexander Day, Atilla Incecik, Yongwon Lee

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In this study, numerical simulations for the prediction of added resistance for KVLCC2 with varying wave steepness are performed using a Computational Fluid Dynamics (CFD) method and a 3-D linear potential method, and then the non-linearities of added resistance and ship motions are investigated in regular short and long waves. Firstly, grid convergence tests in short and long waves are carried out to establish an optimal mesh system for CFD simulations. Secondly, numerical simulations are performed to predict ship added resistance and vertical motion responses in short and long waves and the results are verified using the available experimental data. Finally, the non-linearities of added resistance and ship motions with unsteady wave patterns in the time domain are investigated with the increase in wave steepness in both short and long waves. The present systematic study demonstrates that the numerical results have a reasonable agreement with the experimental data and emphasizes the non-linearity in the prediction of the added resistance and the ship motions with the increasing wave steepness in short and long waves.

LanguageEnglish
Pages143-153
Number of pages11
JournalInternational Journal of Naval Architecture and Ocean Engineering
Volume11
Issue number1
Early online date21 Mar 2018
DOIs
Publication statusPublished - 31 Jan 2019

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Ships
Computer simulation
Computational fluid dynamics
Drag
Computer systems

Keywords

  • added resistance
  • wave steepness
  • short waves
  • potential flow

Cite this

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title = "Numerical studies on non-linearity of added resistance and ship motions of KVLCC2 in short and long waves",
abstract = "In this study, numerical simulations for the prediction of added resistance for KVLCC2 with varying wave steepness are performed using a Computational Fluid Dynamics (CFD) method and a 3-D linear potential method, and then the non-linearities of added resistance and ship motions are investigated in regular short and long waves. Firstly, grid convergence tests in short and long waves are carried out to establish an optimal mesh system for CFD simulations. Secondly, numerical simulations are performed to predict ship added resistance and vertical motion responses in short and long waves and the results are verified using the available experimental data. Finally, the non-linearities of added resistance and ship motions with unsteady wave patterns in the time domain are investigated with the increase in wave steepness in both short and long waves. The present systematic study demonstrates that the numerical results have a reasonable agreement with the experimental data and emphasizes the non-linearity in the prediction of the added resistance and the ship motions with the increasing wave steepness in short and long waves.",
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Numerical studies on non-linearity of added resistance and ship motions of KVLCC2 in short and long waves. / Hizir, Olgun Guven; Kim, Mingyu; Turan, Osman; Day, Alexander; Incecik, Atilla; Lee, Yongwon .

In: International Journal of Naval Architecture and Ocean Engineering, Vol. 11, No. 1, 31.01.2019, p. 143-153.

Research output: Contribution to journalArticle

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T1 - Numerical studies on non-linearity of added resistance and ship motions of KVLCC2 in short and long waves

AU - Hizir, Olgun Guven

AU - Kim, Mingyu

AU - Turan, Osman

AU - Day, Alexander

AU - Incecik, Atilla

AU - Lee, Yongwon

PY - 2019/1/31

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N2 - In this study, numerical simulations for the prediction of added resistance for KVLCC2 with varying wave steepness are performed using a Computational Fluid Dynamics (CFD) method and a 3-D linear potential method, and then the non-linearities of added resistance and ship motions are investigated in regular short and long waves. Firstly, grid convergence tests in short and long waves are carried out to establish an optimal mesh system for CFD simulations. Secondly, numerical simulations are performed to predict ship added resistance and vertical motion responses in short and long waves and the results are verified using the available experimental data. Finally, the non-linearities of added resistance and ship motions with unsteady wave patterns in the time domain are investigated with the increase in wave steepness in both short and long waves. The present systematic study demonstrates that the numerical results have a reasonable agreement with the experimental data and emphasizes the non-linearity in the prediction of the added resistance and the ship motions with the increasing wave steepness in short and long waves.

AB - In this study, numerical simulations for the prediction of added resistance for KVLCC2 with varying wave steepness are performed using a Computational Fluid Dynamics (CFD) method and a 3-D linear potential method, and then the non-linearities of added resistance and ship motions are investigated in regular short and long waves. Firstly, grid convergence tests in short and long waves are carried out to establish an optimal mesh system for CFD simulations. Secondly, numerical simulations are performed to predict ship added resistance and vertical motion responses in short and long waves and the results are verified using the available experimental data. Finally, the non-linearities of added resistance and ship motions with unsteady wave patterns in the time domain are investigated with the increase in wave steepness in both short and long waves. The present systematic study demonstrates that the numerical results have a reasonable agreement with the experimental data and emphasizes the non-linearity in the prediction of the added resistance and the ship motions with the increasing wave steepness in short and long waves.

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