An experimental study of 3-dwave surface and hydrodynamic loads for interaction between solitarywave and submerged horizontal plate

被引：0
|
作者：
Wang Q. [1 ]
Liu H. [1 ]
Fang Y. [1 ]
Shao Q. [1 ]
机构：
[1] Key Laboratory of Hydrodynamics (MOE), Shanghai Jiao Tong University, Shanghai
来源：
Lixue Xuebao/Chinese Journal of Theoretical and Applied Mechanics | 2019年 / 51卷 / 06期
关键词：
Physical experiment; Solitary wave; Stereo reconstruction; Submerged plate; Wave load;
D O I：
10.6052/0459-1879-19-244
中图分类号：
学科分类号：
摘要：
An experiment of interaction between a solitary wave and a submerged plate with finite length and finite width is conducted in a wave basin. A new system of the multi-lens stereo reconstruction is proposed to measure the local deformation of the free surface in the horizontal area of 1.7 m×1.6 m in the experiment. A set of underwater force measuring system consisted of four force balances is designed to obtain the wave loads on the submerged plate, without the interference on the surface elevation measurement. A solitary wave is generated in a wave basin of uniform water depth. The wave amplitude is 0.16 m and the still water depth is 0.4 m. The submerged depth of the horizontal plate is 0.1 m. No wave breaking occurs during the wave propagation. The three-dimensional deformations of the free surface elevation lead to the spatial and temporal variation of the solitary wave amplitude. It is found that, for the case of the present wave condition and the submerged plate, the surface elevation reaches the highest at the centerline of the plate near its trailing edge, and decreases along the span direction. The time series of the surface elevation measured by the multilens stereo reconstruction method agree well with the wave elevations measured by the wave gauges, which validates the new wave surface measurement system. The loading processes of the horizontal force, vertical force and the pitch moment are proposed as 6 typical phases in which the characteristics of the measured wave surface elevation are discussed. The wave surfaces measured by the multi-lens stereo reconstruction method are given at the corresponding time as the peaks of the vertical force and the pitch moment occurs. The multi-lens stereo reconstruction method could be used to measure the wave field for physical model experiments in a wave basin as a new tool. © 2019, Chinese Journal of Theoretical and Applied Mechanics Press. All right reserved.
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页码：1605 / 1613
页数：8
相关论文
共 30 条
  • [1] Yu X., Functional performance of a submerged and essentially horizontal plate for offshore wave control: A review, Coastal Engineering Journal, 44, 2, pp. 127-147, (2002)
  • [2] Zhao X., Wang B.L., Liu H., Characteristics of tsunami motion and energy budget during runup and rundown processes over a plane beach, Physics of Fluids, 24, (2012)
  • [3] Li Z.S., Zhao X., An C., Et al., Wave profiles of a virtual extreme tsunami in the northern region of South China Sea, Journal of Earthquake and Tsunami, 12, 2, (2018)
  • [4] Hsiao S.C., Lin T.C., Tsunami-like solitary waves impinging and overtopping an impermeable seawall: Experiment and RANS modeling, Coastal Engineering, 57, 1, pp. 1-18, (2010)
  • [5] Zhao X., Liu H., Wang B.L., Tsunami waveforms and runup of undular bores in coastal water, Journal of Engineering Mechanics, ASCE, 142, 7, (2016)
  • [6] Hayatdavoodi M., Ertekin R.C., Review of wave loads on coastal bridge decks, Applied Mechanics Reviews, 68, 3, (2016)
  • [7] French J.A., Wave uplift pressures on horizontal platforms, (1970)
  • [8] Lo H.Y., Liu P.L.F., Solitary waves incident on a submerged horizontal plate, Journal of Waterway, Port, Coastal, and Ocean Engineering, 140, 3, (2013)
  • [9] Hayatdavoodi M., Seiffert B., Ertekin R.C., Experiments and computations of solitary-wave forces on a coastal-bridge deck. Part II: Deck with Girders, Coastal Engineering, 88, pp. 210-228, (2014)
  • [10] Poupardin A., Perret G., Pinon G., Et al., Vortex kinematic around a submerged plate under water waves. Part I: Experimental Analysis, European Journal of Mechanics B/Fluids, 34, pp. 47-55, (2012)
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