Numerical Comparison for Focused Wave Propagation Between the Fully Nonlinear Potential Flow and the Viscous Fluid Flow Models

被引：0
作者：
JIANG Sheng-chao [1 ,2 ]
LIU Chang-feng [3 ]
SUN Lei [1 ]
机构：
[1] School of Naval Architecture, State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology
[2] College of Ocean and Civil Engineering, Dalian Ocean University
[3] State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology
来源：
ChinaOceanEngineering | 2020年 / 34卷 / 02期
基金：
中央高校基本科研业务费专项资金资助; 中国国家自然科学基金;
关键词：
focused wave; linear potential flow; fully nonlinear potential flow; viscous fluid flow; boundary element method; OpenFOAM;
D O I：
暂无
中图分类号：
TV139.2 [波浪水力学];
学科分类号：
0801 ; 080103 ; 080104 ; 081502 ;
摘要：
Numerical simulations on focused wave propagation are carried out by using three types of numerical models,including the linear potential flow, the nonlinear potential flow and the viscous fluid flow models. The wave-wave interaction of the focused wave group with different frequency bands and input wave amplitudes is examined, by which the influence of free surface nonlinearity and fluid viscosity on the related phenomenon of focused wave is investigated. The significant influence of free surface nonlinearity on the characteristics of focused wave can be observed, including the increased focused wave crest, delayed focused time and downstream shift of focused position with the increase of input amplitude. It can plot the evident difference between the results of the nonlinear potential flow and linear potential flow models. However, only a little discrepancy between the nonlinear potential flow and viscous fluid flow models can be observed, implying the insignificant effect of fluid viscosity on focused wave behavior. Therefore, the nonlinear potential flow model is recommended for simulating the non-breaking focused wave problem in this study.
引用
收藏
页码：279 / 288
页数：10
相关论文
共 22 条
[1]  
A Fully Nonlinear HOBEM with the Domain Decomposition Method for Simulation of Wave Propagation and Diffraction[J]. JIANG Sheng-chao,SHI Ze-hang,SONG Chao,ZHANG Gui-yong,TANG Guo-qiang.China Ocean Engineering. 2018(06)
[2]  
Numerical Study of Two-Dimensional Focusing Waves[J]. 李金宣,柳淑学,洪起庸.China Ocean Engineering. 2008(02)
[3]  
Numerical investigation of wave forces on two side-by-side non-identical boxes in close proximity under wave actions[J] . Sheng-Chao Jiang,Wei Bai,Pei-Wen Cong,Bin Yan.Marine Structures . 2019
[4]  
Numerical simulation of wave resonance in the narrow gap between two non-identical boxes[J] . Sheng-Chao Jiang,Wei Bai,Guo-Qiang Tang.Ocean Engineering . 2018
[5]  
The evolution of free and bound waves during dispersive focusing in a numerical and physical flume[J] . Thomas Vyzikas,Dimitris Stagonas,Eugeny Buldakov,Deborah Greaves.Coastal Engineering . 2018
[6]  
Fully nonlinear wave interaction with freely floating non-wall-sided structures[J] . B.Z. Zhou,G.X. Wu,B. Teng.Engineering Analysis with Boundary Elements . 2015
[7]  
Numerical simulation of fully nonlinear wave interaction with submerged structures: Fixed or subjected to constrained motion[J] . W. Bai,M.A. Hannan,K.K. Ang.Journal of Fluids and Structures . 2014
[8]  
Fully nonlinear analysis of near-trapping phenomenon around an array of cylinders[J] . W. Bai,X. Feng,R. Eatock Taylor,K.K. Ang.Applied Ocean Research . 2014
[9]  
Experimental study of interactions between multi-directional focused wave and vertical circular cylinder, part II: Wave force[J] . Jinxuan Li,Zhanhang Wang,Shuxue Liu.Coastal Engineering . 2014
[10]  
Numerical investigation of wave radiation by a vertical cylinder using a fully nonlinear HOBEM[J] . B.Z. Zhou,D.Z. Ning,B. Teng,W. Bai.Ocean Engineering . 2013
123