Qualitative Description of Swashing Motion States on Mild Beach Slope
Qualitative Description of Swashing Motion States on Mild Beach Slope
复制标题
温和海滩坡度冲刷运动状态的定性描述
DOI:
10.1007/s13344-019-0039-z
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发表时间:
2019-07
影响因子:
1.6
通讯作者:
Liu Yanli
中科院分区:
文献类型:
--
作者:
Yin Jing;Zou Zhili;Fang Kezhao;Liu Yanli
The swashing motion on mild beach slope is dominated by the motion of low frequency waves (LFWs). Companying such a motion, there are two types of swashing motion states, occurrence or no occurrence of LFW's collision. The present study distinguishes the two states qualitatively by relating it to the number of generated LFWs for the case of two incident wave groups. A simplified swashing index is established theoretically for this purpose. A series of related experiments were performed to observe the generated out-going LFWs on different mild slope from 1:20 to 1:160 and to determine the critical value of the swashing index. Numerical simulations based on higher order Boussinesq equations are also performed to help the recognition of the LFWs generated in the experiment.
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