Numerical Assessment of the Resistance of a Solar Catamaran in Shallow Water
In this paper, a numerical assessment of the effect of shallow water on the total resistance of the solar catamaran SolarCat is carried out using computational fluid dynamics within the software package STAR–CCM+. The unsteady viscous fluid flow was modelled based on the Reynolds-averaged Navier–Sto...
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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/2077-1312/11/9/1706 |
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| author | Ivana Martić Nastia Degiuli Kornelija Borčić Carlo Giorgio Grlj |
| author_facet | Ivana Martić Nastia Degiuli Kornelija Borčić Carlo Giorgio Grlj |
| author_sort | Ivana Martić |
| collection | DOAJ |
| description | In this paper, a numerical assessment of the effect of shallow water on the total resistance of the solar catamaran SolarCat is carried out using computational fluid dynamics within the software package STAR–CCM+. The unsteady viscous fluid flow was modelled based on the Reynolds-averaged Navier–Stokes (RANS) equations with the application of the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>k</mi><mo>−</mo><mi>ω</mi></mrow></semantics></math></inline-formula> SST (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>k</mi><mo>−</mo><mi>ω</mi></mrow></semantics></math></inline-formula> Shear Stress Transport) turbulence model. The RANS equations were discretized by the finite volume method, and the position of the free surface is determined by the volume of fluid method. In shallow water conditions, a mesh morphing algorithm is applied. Numerical simulations were carried out for the deep water and limited depths corresponding to <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>h</mi><mo>/</mo><mi>T</mi><mrow><mo>=</mo><mn>7</mn></mrow><mrow><mo>.</mo><mn>6</mn></mrow></mrow></semantics></math></inline-formula>, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>h</mi><mo>/</mo><mi>T</mi><mrow><mo>=</mo><mn>4</mn></mrow></mrow></semantics></math></inline-formula>, and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>h</mi><mo>/</mo><mi>T</mi><mrow><mo>=</mo><mn>2</mn></mrow></mrow></semantics></math></inline-formula> at two speeds. The verification study was carried out and the total numerical uncertainty was calculated for the total resistance and sinkage of the catamaran. A detailed analysis of the flow around the catamaran was carried out. |
| first_indexed | 2024-03-10T22:34:49Z |
| format | Article |
| id | doaj.art-0dcf6209417d4808b652df0516b43c44 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-10T22:34:49Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
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| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-0dcf6209417d4808b652df0516b43c442023-11-19T11:26:17ZengMDPI AGJournal of Marine Science and Engineering2077-13122023-08-01119170610.3390/jmse11091706Numerical Assessment of the Resistance of a Solar Catamaran in Shallow WaterIvana Martić0Nastia Degiuli1Kornelija Borčić2Carlo Giorgio Grlj3Faculty 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, CroatiaFaculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, CroatiaIn this paper, a numerical assessment of the effect of shallow water on the total resistance of the solar catamaran SolarCat is carried out using computational fluid dynamics within the software package STAR–CCM+. The unsteady viscous fluid flow was modelled based on the Reynolds-averaged Navier–Stokes (RANS) equations with the application of the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>k</mi><mo>−</mo><mi>ω</mi></mrow></semantics></math></inline-formula> SST (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>k</mi><mo>−</mo><mi>ω</mi></mrow></semantics></math></inline-formula> Shear Stress Transport) turbulence model. The RANS equations were discretized by the finite volume method, and the position of the free surface is determined by the volume of fluid method. In shallow water conditions, a mesh morphing algorithm is applied. Numerical simulations were carried out for the deep water and limited depths corresponding to <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>h</mi><mo>/</mo><mi>T</mi><mrow><mo>=</mo><mn>7</mn></mrow><mrow><mo>.</mo><mn>6</mn></mrow></mrow></semantics></math></inline-formula>, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>h</mi><mo>/</mo><mi>T</mi><mrow><mo>=</mo><mn>4</mn></mrow></mrow></semantics></math></inline-formula>, and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>h</mi><mo>/</mo><mi>T</mi><mrow><mo>=</mo><mn>2</mn></mrow></mrow></semantics></math></inline-formula> at two speeds. The verification study was carried out and the total numerical uncertainty was calculated for the total resistance and sinkage of the catamaran. A detailed analysis of the flow around the catamaran was carried out.https://www.mdpi.com/2077-1312/11/9/1706catamaranshallow waterresistancesinkagetrimcomputational fluid dynamics |
| spellingShingle | Ivana Martić Nastia Degiuli Kornelija Borčić Carlo Giorgio Grlj Numerical Assessment of the Resistance of a Solar Catamaran in Shallow Water Journal of Marine Science and Engineering catamaran shallow water resistance sinkage trim computational fluid dynamics |
| title | Numerical Assessment of the Resistance of a Solar Catamaran in Shallow Water |
| title_full | Numerical Assessment of the Resistance of a Solar Catamaran in Shallow Water |
| title_fullStr | Numerical Assessment of the Resistance of a Solar Catamaran in Shallow Water |
| title_full_unstemmed | Numerical Assessment of the Resistance of a Solar Catamaran in Shallow Water |
| title_short | Numerical Assessment of the Resistance of a Solar Catamaran in Shallow Water |
| title_sort | numerical assessment of the resistance of a solar catamaran in shallow water |
| topic | catamaran shallow water resistance sinkage trim computational fluid dynamics |
| url | https://www.mdpi.com/2077-1312/11/9/1706 |
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