基于非静压模型类海啸波作用下海堤越浪特性Overtopping Characteristics of Seawall under Action of Tsunami-like Wave Based on Nonhydrostatic Model
屈科,李凯伦,蒋昌波,邓斌,刘铁威,蓝港芸
摘要(Abstract)：
【目的】研究海啸波在斜坡海堤上越浪的水动力特性。【方法】基于非静压模型NHWAVE建立高精度二维数值波浪水槽,通过对日本2011年实测真实海啸进行参数化形成类海啸波形,并设置系列计算工况,深入分析入射波高、水深、岸滩坡度及海堤坡度对类海啸波作用下海堤越浪特性的影响,并将计算结果与孤立波进行对比。【结果与结论】相同工况下,类海啸波的单宽越浪量大于孤立波,波浪经海堤消能后,能量衰减,孤立波能量损耗率大于类海啸波;随波高和水深增加,越浪量均增大;海堤坡度对越浪量的影响不大;岸滩坡度减缓,波浪速度将在堤前聚集,类海啸波在1∶20的岸滩坡度下越浪量达到最大。研究结果可为近岸水利防护工程的建设提供参考。
关键词(KeyWords)： 类海啸波;孤立波;非静压模型;越浪量;水动力特性
基金项目(Foundation): 国家自然科学基金（51809021,51839002）;; 湖南省自然科学基金（2020JJ5582）;; 湖南省教育厅科学研究重点项目（19A024）
作者(Author): 屈科,李凯伦,蒋昌波,邓斌,刘铁威,蓝港芸
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