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Surface Evolution and Wave Loads on a Horizontal Plate in Different Tsunami-like Waves
Journal of Earthquake and Tsunami ( IF 1.5 ) Pub Date : 2020-05-08 , DOI: 10.1142/s1793431120400011 Qian Wang 1 , Yong-Liu Fang 1 , Hua Liu 1
Journal of Earthquake and Tsunami ( IF 1.5 ) Pub Date : 2020-05-08 , DOI: 10.1142/s1793431120400011 Qian Wang 1 , Yong-Liu Fang 1 , Hua Liu 1
Affiliation
Physical experiments are conducted to study the interaction between the tsunami-like waves and the horizontal plate. The surface evolution and wave-induced loads are measured to explore the hydrodynamic characteristics when different waves are employed to simulate the tsunami. The solitary wave, surge wave, and undular bore are generated in laboratory as the simplification of the offshore tsunami wave. The bottom-fixed plate places near the free surface. It is found that the elevated plate attenuates the solitary waves locally, while the submerged plate leads to the wave focus phenomenon. The plate has less influence on the surface variation of the surge wave propagating. Results of loads show the different loading process of each tsunami-like wave. The inertial wave force and the local pressure from the rising surface dominate the inline force and vertical force, respectively. The value of loads induced by the surge wave is less than that of the solitary wave. The undular bore is generated by the superimposition of the solitary wave on the surge wave. The part of the solitary wave plays a local role in the wave force, while the surge part dominates the surface evolution.
中文翻译:
不同海啸样波浪中水平板的表面演化和波浪载荷
进行物理实验以研究海啸状波浪与水平板块之间的相互作用。测量表面演变和波浪引起的载荷,以探索使用不同波浪模拟海啸时的水动力特性。孤立波、浪涌波和波状孔是在实验室中产生的,是近海海啸波的简化。底部固定板放置在自由表面附近。研究发现,高架板对孤立波进行了局部衰减,而淹没板导致了波聚焦现象。板对冲击波传播的表面变化影响较小。载荷结果显示了每个类似海啸的波浪的不同加载过程。来自上升表面的惯性波浪力和局部压力分别主导着轴向力和垂直力。冲击波引起的载荷值小于孤立波的载荷值。波状孔是由孤立波叠加在浪涌波上产生的。孤立波部分在波浪力中起局部作用,而涌流部分则主导表面演化。
更新日期:2020-05-08
中文翻译:
不同海啸样波浪中水平板的表面演化和波浪载荷
进行物理实验以研究海啸状波浪与水平板块之间的相互作用。测量表面演变和波浪引起的载荷,以探索使用不同波浪模拟海啸时的水动力特性。孤立波、浪涌波和波状孔是在实验室中产生的,是近海海啸波的简化。底部固定板放置在自由表面附近。研究发现,高架板对孤立波进行了局部衰减,而淹没板导致了波聚焦现象。板对冲击波传播的表面变化影响较小。载荷结果显示了每个类似海啸的波浪的不同加载过程。来自上升表面的惯性波浪力和局部压力分别主导着轴向力和垂直力。冲击波引起的载荷值小于孤立波的载荷值。波状孔是由孤立波叠加在浪涌波上产生的。孤立波部分在波浪力中起局部作用,而涌流部分则主导表面演化。