The Effect of Draft Ratio of Side-By-Side Barges on Fluid Oscillation in Narrow Gap
In the present study, the effects of the draft ratio of the floating body on the fluid oscillation in the gap are investigated by using the viscous fluid model. Numerical simulations are implemented by coupling wave2Foam and OpenFOAM. The Volume of Fluid (VOF) model is used to capture the free surfa...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-09-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/8/9/694 |
| _version_ | 1797554340261527552 |
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| author | Linfeng Chen Xueshen Cao Shiyan Sun Jie Cui |
| author_facet | Linfeng Chen Xueshen Cao Shiyan Sun Jie Cui |
| author_sort | Linfeng Chen |
| collection | DOAJ |
| description | In the present study, the effects of the draft ratio of the floating body on the fluid oscillation in the gap are investigated by using the viscous fluid model. Numerical simulations are implemented by coupling wave2Foam and OpenFOAM. The Volume of Fluid (VOF) model is used to capture the free surface waves. It is verified that the numerical results agree well with the experimental and other results. It is firstly found that, within the water depth range investigated in the present study, the depth of the wave tank has a significant effect on the numerical results. As the depth of the wave tank increases, the oscillation amplitude of the narrow-gap fluid largely decreases and the resonant frequency of the fluid oscillation in the narrow gap increases. The results also reveal that the draft ratio of floating bodies has a significant nonlinear influence on the resonant frequency and on the oscillation amplitude of the fluid in the narrow gap. With an increase in the draft of either the floating body on the wave side or the one on the back wave side, the resonant frequency decreases. The increase in the draft of the floating body on the wave side causes an increase in the reflection wave coefficient and leads to a drop in the fluid oscillation amplitude, and the increase in the draft of the floating body on the back wave side triggers a decrease in the reflection wave coefficient and results in an increase in the fluid oscillation amplitude. Meanwhile, the viscous dissipation induced by the fluid viscosity synchronously increases with the oscillation amplitude of the fluid in the increasing gap. Moreover, it is found that the draft ratio mainly affects the horizontal force of the floating body on the back wave side and that the highest calculated force increases with the draft ratio. |
| first_indexed | 2024-03-10T16:29:35Z |
| format | Article |
| id | doaj.art-5b3f26ba082e4654bf82e3b921f7d117 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-10T16:29:35Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-5b3f26ba082e4654bf82e3b921f7d1172023-11-20T12:54:20ZengMDPI AGJournal of Marine Science and Engineering2077-13122020-09-018969410.3390/jmse8090694The Effect of Draft Ratio of Side-By-Side Barges on Fluid Oscillation in Narrow GapLinfeng Chen0Xueshen Cao1Shiyan Sun2Jie Cui3School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaSchool of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaSchool of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaSchool of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaIn the present study, the effects of the draft ratio of the floating body on the fluid oscillation in the gap are investigated by using the viscous fluid model. Numerical simulations are implemented by coupling wave2Foam and OpenFOAM. The Volume of Fluid (VOF) model is used to capture the free surface waves. It is verified that the numerical results agree well with the experimental and other results. It is firstly found that, within the water depth range investigated in the present study, the depth of the wave tank has a significant effect on the numerical results. As the depth of the wave tank increases, the oscillation amplitude of the narrow-gap fluid largely decreases and the resonant frequency of the fluid oscillation in the narrow gap increases. The results also reveal that the draft ratio of floating bodies has a significant nonlinear influence on the resonant frequency and on the oscillation amplitude of the fluid in the narrow gap. With an increase in the draft of either the floating body on the wave side or the one on the back wave side, the resonant frequency decreases. The increase in the draft of the floating body on the wave side causes an increase in the reflection wave coefficient and leads to a drop in the fluid oscillation amplitude, and the increase in the draft of the floating body on the back wave side triggers a decrease in the reflection wave coefficient and results in an increase in the fluid oscillation amplitude. Meanwhile, the viscous dissipation induced by the fluid viscosity synchronously increases with the oscillation amplitude of the fluid in the increasing gap. Moreover, it is found that the draft ratio mainly affects the horizontal force of the floating body on the back wave side and that the highest calculated force increases with the draft ratio.https://www.mdpi.com/2077-1312/8/9/694side-by-side bargesnarrow-gap fluid resonancedraft ratiooscillation amplitudehorizontal force |
| spellingShingle | Linfeng Chen Xueshen Cao Shiyan Sun Jie Cui The Effect of Draft Ratio of Side-By-Side Barges on Fluid Oscillation in Narrow Gap Journal of Marine Science and Engineering side-by-side barges narrow-gap fluid resonance draft ratio oscillation amplitude horizontal force |
| title | The Effect of Draft Ratio of Side-By-Side Barges on Fluid Oscillation in Narrow Gap |
| title_full | The Effect of Draft Ratio of Side-By-Side Barges on Fluid Oscillation in Narrow Gap |
| title_fullStr | The Effect of Draft Ratio of Side-By-Side Barges on Fluid Oscillation in Narrow Gap |
| title_full_unstemmed | The Effect of Draft Ratio of Side-By-Side Barges on Fluid Oscillation in Narrow Gap |
| title_short | The Effect of Draft Ratio of Side-By-Side Barges on Fluid Oscillation in Narrow Gap |
| title_sort | effect of draft ratio of side by side barges on fluid oscillation in narrow gap |
| topic | side-by-side barges narrow-gap fluid resonance draft ratio oscillation amplitude horizontal force |
| url | https://www.mdpi.com/2077-1312/8/9/694 |
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