The Impact of Numerical Parameters on the Resistance Characteristics of a Container Ship at the Model and Full Scale
Computational Fluid Dynamics (CFD) is a powerful tool used to predict the resistance characteristics of a ship. However, it is important to determine the numerical and modelling errors to assure accurate results. The aim of this study is the investigation of the impact of different numerical paramet...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-08-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/11/9/1672 |
| _version_ | 1827725745249583104 |
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| author | Carlo Giorgio Grlj Nastia Degiuli Ivana Martić |
| author_facet | Carlo Giorgio Grlj Nastia Degiuli Ivana Martić |
| author_sort | Carlo Giorgio Grlj |
| collection | DOAJ |
| description | Computational Fluid Dynamics (CFD) is a powerful tool used to predict the resistance characteristics of a ship. However, it is important to determine the numerical and modelling errors to assure accurate results. The aim of this study is the investigation of the impact of different numerical parameters on the total resistance, wave pattern and ship motion in numerical simulations at the model and full scale. These include the turbulence model and discretization schemes for convection, gradient and temporal terms within the governing equations. The numerical model used in numerical simulations is based on Reynolds Averaged Navier-Stokes (RANS) equations which are discretized using the Finite Volume Method (FVM). To locate and track the free surface, the Volume of Fluid (VOF) method is employed. The Grid Convergence Index (GCI) method is used for the verification study. The obtained results show that the selection of the discretization scheme for temporal term does not have impact on the median value of the total resistance and that the first-order scheme assures faster convergence in numerical simulations at the full scale. A higher portion of the frictional resistance in the total resistance is obtained with numerical simulations at the model scale in comparison to the full scale. |
| first_indexed | 2024-03-10T22:34:50Z |
| format | Article |
| id | doaj.art-137344ac6076400599539066e5f5f765 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-10T22:34:50Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-137344ac6076400599539066e5f5f7652023-11-19T11:25:46ZengMDPI AGJournal of Marine Science and Engineering2077-13122023-08-01119167210.3390/jmse11091672The Impact of Numerical Parameters on the Resistance Characteristics of a Container Ship at the Model and Full ScaleCarlo Giorgio Grlj0Nastia Degiuli1Ivana Martić2Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, CroatiaFaculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, CroatiaFaculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, CroatiaComputational Fluid Dynamics (CFD) is a powerful tool used to predict the resistance characteristics of a ship. However, it is important to determine the numerical and modelling errors to assure accurate results. The aim of this study is the investigation of the impact of different numerical parameters on the total resistance, wave pattern and ship motion in numerical simulations at the model and full scale. These include the turbulence model and discretization schemes for convection, gradient and temporal terms within the governing equations. The numerical model used in numerical simulations is based on Reynolds Averaged Navier-Stokes (RANS) equations which are discretized using the Finite Volume Method (FVM). To locate and track the free surface, the Volume of Fluid (VOF) method is employed. The Grid Convergence Index (GCI) method is used for the verification study. The obtained results show that the selection of the discretization scheme for temporal term does not have impact on the median value of the total resistance and that the first-order scheme assures faster convergence in numerical simulations at the full scale. A higher portion of the frictional resistance in the total resistance is obtained with numerical simulations at the model scale in comparison to the full scale.https://www.mdpi.com/2077-1312/11/9/1672CFDdiscretization schemeturbulence modelcontainer shipresistance test |
| spellingShingle | Carlo Giorgio Grlj Nastia Degiuli Ivana Martić The Impact of Numerical Parameters on the Resistance Characteristics of a Container Ship at the Model and Full Scale Journal of Marine Science and Engineering CFD discretization scheme turbulence model container ship resistance test |
| title | The Impact of Numerical Parameters on the Resistance Characteristics of a Container Ship at the Model and Full Scale |
| title_full | The Impact of Numerical Parameters on the Resistance Characteristics of a Container Ship at the Model and Full Scale |
| title_fullStr | The Impact of Numerical Parameters on the Resistance Characteristics of a Container Ship at the Model and Full Scale |
| title_full_unstemmed | The Impact of Numerical Parameters on the Resistance Characteristics of a Container Ship at the Model and Full Scale |
| title_short | The Impact of Numerical Parameters on the Resistance Characteristics of a Container Ship at the Model and Full Scale |
| title_sort | impact of numerical parameters on the resistance characteristics of a container ship at the model and full scale |
| topic | CFD discretization scheme turbulence model container ship resistance test |
| url | https://www.mdpi.com/2077-1312/11/9/1672 |
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