节点文献
基于位移法浅水波理论波浪破碎数值模拟
Numerical simulation of wave breaking based on displacement method Shallow Water Wave Theory
【Author】 HUANG Dong-wei;WU Feng;ZHONG Wan-xie;ZHANG Hong-wu;State Key Laboratory of Structural Analysis of Industrial Equipment;
【机构】 大连理工大学工业装备结构分析国家重点实验室；
【摘要】 本文在Lagrange坐标系下推导了二维浅水波波浪破碎项。考虑水底不光滑引起的摩阻项。基于位移法浅水波理论构建了包含破碎项和摩阻项的浅水波数值模型。利用保辛算法和有限元建立了相应的求解格式。最后通过文献算例验证了本文所得到的浅水波数值模型可以有效的模拟近海岸波浪浅化的运动情况。
【Abstract】 In this paper,the two-dimensional shallow wave breaking term is derived under the Lagrange coordinate system.Consider the frictional resistance caused by the uneven bottom of the water.Based on the shallow water wave theory of displacement method,a numerical model of shallow water wave including fracture term and friction term is constructed.The corresponding solution format is established by using the symplectic algorithm and finite element method.Finally,a numerical example is given to verify that the shallow water wave numerical model obtained in this paper can effectively simulate the motion of near-shore waves shallowing.
【Key words】 Shallow water wave； Displacement method； Wave breaking； Symplectic algorithm； Finite element method；
- 【会议录名称】 第三十届全国水动力学研讨会暨第十五届全国水动力学学术会议论文集(上册)
- 【会议名称】第三十届全国水动力学研讨会暨第十五届全国水动力学学术会议
- 【会议时间】2019-08-16
- 【会议地点】中国安徽合肥
- 【分类号】O353.2
- 【主办单位】《水动力学研究与进展》编委会（Editorial Board of Journal of Hydrodynamics）、中国力学学会(Chinese Society of Theoretical and Applied Mechanics)、中国造船工程学会(Chinese Society of Naval Architecture and Marine Engineering)、合肥工业大学(Hefei University of Technology)、中国科技技术大学(University of Science of Technology of China)