Numerical Simulation of a Single Wave Interaction with Submerged Breakwater in a Model Basin

2021 ◽  
pp. 155-164
Author(s):  
S. Yu. Mikhailichenko ◽  
E. V. Ivancha ◽  
A. Yu. Belokon
Keyword(s):  
Numerical Simulation ◽  
Wave Interaction ◽  
Single Wave ◽  
Submerged Breakwater

Mathematical study of wave interaction with a mound type of composite poroelastic submerged breakwater

2016 ◽  
Vol 124 ◽  
pp. 1-12 ◽  
Author(s):  
Yuan-Jyh Lan ◽  
Tai-Wen Hsu ◽  
Fang-Xuan Gan ◽  
Chi-Yu Li
Keyword(s):  
Wave Interaction ◽  
Mathematical Study ◽  
Submerged Breakwater

Analysis of water wave interaction with a submerged quarter-circular breakwater using multipole method

2020 ◽  
Vol 234 (4) ◽  
pp. 846-860
Author(s):  
Ai-jun Li ◽  
Yong Liu ◽  
Zuo-rui Lyu
Keyword(s):  
Water Wave ◽  
Series Solution ◽  
Velocity Potential ◽  
Separation Of Variables ◽  
Wave Interaction ◽  
Wave Forces ◽  
Submerged Breakwater ◽  
Circular Arc ◽  
Internal Fluid ◽  
Multipole Expansion Method

This article studies water wave interaction with a submerged quarter-circular breakwater based on potential theory and multipole expansion method. The obliquely and normally incident waves are independently considered. The series solution of velocity potential in the external fluid domain is expressed through the multipole expansions, while the series solution of velocity potential in the quarter-circular internal fluid domain is obtained through the separation of variables. Then, the unknown coefficients in the series solutions are determined by matching the boundary conditions between external and internal fluid domains. The calculation methods for the reflection and transmission coefficients of the submerged quarter-circular breakwater as well as the horizontal and vertical wave forces on the breakwater are presented. The wave forces acting on the submerged breakwater with a seaside quarter-circular-arc and that with a leeside quarter-circular-arc are compared. The hydrodynamic quantities of the submerged quarter-circular breakwater are also compared with those of the submerged semi-circular breakwater. In addition, the effects of breakwater radius, incident frequency, and incident angle on the hydrodynamic quantities of the quarter-circular breakwater are clarified. Valuable results for practical engineering application are drawn.

Numerical Simulation of 5th-Order Stokes Wave in Finite Water Depth Based on Momentum Source Method

2021 ◽  
Author(s):  
Wenjie Wang ◽  
Zhiliang Gao
Keyword(s):  
Numerical Simulation ◽  
Water Depth ◽  
Present Method ◽  
Wave Interaction ◽  
Wave Generation ◽  
Stokes Wave ◽  
Wave Loads ◽  
Large Wave ◽  
Wave Flume ◽  
Finite Water Depth

Abstract For numerical simulation of structure-wave interaction, the wave generation with high accuracy is prime to analyze the wave loads and motions of the structure. Based on the fifth-order Stokes theory, a two-dimensional viscous wave flume, which was modeled using the commercial CFD solver ANSYS-FLUENT, was applied to the generation and propagation of regular waves in finite water depth. With the user-defined function provided by the solver, the momentum source term and boundary condition, which are used for the wave generation and dissipation, were developed to ensure the accuracy of wave simulation with large steepness. In addition, the wave flume was separated into two regions, which are governed by the laminar model and turbulent model, respectively. The separation of laminar and turbulent regions can alleviate the side effect of turbulence on the accuracy of wave generation. In order to validate the present method, the regular wave propagating with different steepness in finite water depth were simulated. The numerical results were in good agreement with the theoretical ones. The study showed that the present method was effective for the simulation of Stokes wave in finite water depth, especially effective to improve the numerical accuracy in case of large wave steepness.

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