Laboratory Study on Flow Characteristics during Solitary Waves Interacting with a Suspended Horizontal Plate
A series of laboratory experiments were conducted to investigate the 2–D kinematic field evolution around a suspended plate induced by solitary waves. The plate–type structure was rigid and suspended above the mean water level, while the solitary waves were generated by the wave maker to simulate th...
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| Format: | Article |
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MDPI AG
2022-08-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/14/15/2386 |
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| author | Xuyang Niu Yuxiang Ma Guohai Dong |
| author_facet | Xuyang Niu Yuxiang Ma Guohai Dong |
| author_sort | Xuyang Niu |
| collection | DOAJ |
| description | A series of laboratory experiments were conducted to investigate the 2–D kinematic field evolution around a suspended plate induced by solitary waves. The plate–type structure was rigid and suspended above the mean water level, while the solitary waves were generated by the wave maker to simulate the nearshore tsunami waves. The ratio of incident wave height to water depth was in the range of [0.200, 0.333], and the structural suspended height was in the range of [0.067, 0.200]. The velocity field around the deck was measured using the non–intrusive image–based PIV (Particle Image Velocimetry) method. As a result, the flow evolution was categorized into three phases: green water tongue generated, green water overtopping, and flow separation. Flow evolutions in different conditions presented obvious similarities in general but several differences in detail. The measured maximum horizontal and vertical velocities were around 1.9 <i>C</i><sub>0</sub> and 0.8 <i>C</i><sub>0</sub>, respectively, where <i>C</i><sub>0</sub> is the maximum flow speed of the incident wave. Ritter’s analytical solution for the dam–break flow problem was examined and compared with the measured data. The accuracy of this solution for the present subject is significant in the period of <i>T</i> ∈ (0.6, 0.9). The adequate experimental data are valuable as a benchmark problem for further numerical model refinement and the improvement of fluid theory. |
| first_indexed | 2024-03-09T10:03:28Z |
| format | Article |
| id | doaj.art-70b05b1f13ea4f1981f954140b5ec0a3 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-09T10:03:28Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-70b05b1f13ea4f1981f954140b5ec0a32023-12-01T23:15:47ZengMDPI AGWater2073-44412022-08-011415238610.3390/w14152386Laboratory Study on Flow Characteristics during Solitary Waves Interacting with a Suspended Horizontal PlateXuyang Niu0Yuxiang Ma1Guohai Dong2State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, ChinaState Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, ChinaState Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, ChinaA series of laboratory experiments were conducted to investigate the 2–D kinematic field evolution around a suspended plate induced by solitary waves. The plate–type structure was rigid and suspended above the mean water level, while the solitary waves were generated by the wave maker to simulate the nearshore tsunami waves. The ratio of incident wave height to water depth was in the range of [0.200, 0.333], and the structural suspended height was in the range of [0.067, 0.200]. The velocity field around the deck was measured using the non–intrusive image–based PIV (Particle Image Velocimetry) method. As a result, the flow evolution was categorized into three phases: green water tongue generated, green water overtopping, and flow separation. Flow evolutions in different conditions presented obvious similarities in general but several differences in detail. The measured maximum horizontal and vertical velocities were around 1.9 <i>C</i><sub>0</sub> and 0.8 <i>C</i><sub>0</sub>, respectively, where <i>C</i><sub>0</sub> is the maximum flow speed of the incident wave. Ritter’s analytical solution for the dam–break flow problem was examined and compared with the measured data. The accuracy of this solution for the present subject is significant in the period of <i>T</i> ∈ (0.6, 0.9). The adequate experimental data are valuable as a benchmark problem for further numerical model refinement and the improvement of fluid theory.https://www.mdpi.com/2073-4441/14/15/2386solitary wavegreen waterwave overtoppingflow fieldparticle image velocimetry (PIV)dam–break flow |
| spellingShingle | Xuyang Niu Yuxiang Ma Guohai Dong Laboratory Study on Flow Characteristics during Solitary Waves Interacting with a Suspended Horizontal Plate Water solitary wave green water wave overtopping flow field particle image velocimetry (PIV) dam–break flow |
| title | Laboratory Study on Flow Characteristics during Solitary Waves Interacting with a Suspended Horizontal Plate |
| title_full | Laboratory Study on Flow Characteristics during Solitary Waves Interacting with a Suspended Horizontal Plate |
| title_fullStr | Laboratory Study on Flow Characteristics during Solitary Waves Interacting with a Suspended Horizontal Plate |
| title_full_unstemmed | Laboratory Study on Flow Characteristics during Solitary Waves Interacting with a Suspended Horizontal Plate |
| title_short | Laboratory Study on Flow Characteristics during Solitary Waves Interacting with a Suspended Horizontal Plate |
| title_sort | laboratory study on flow characteristics during solitary waves interacting with a suspended horizontal plate |
| topic | solitary wave green water wave overtopping flow field particle image velocimetry (PIV) dam–break flow |
| url | https://www.mdpi.com/2073-4441/14/15/2386 |
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