Simulation of Numerical Wave Based on Fluid Volume Function

2012 ◽  
Vol 614-615 ◽  
pp. 541-545
Author(s):  
Jian Jun Peng ◽  
Yan Jun Liu ◽  
Yu Li ◽  
Xing Wang Sun
Keyword(s):  
Numerical Simulation ◽  
Power Generation ◽  
Linear Wave ◽  
Numerical Wave Tank ◽  
Second Development ◽  
Numerical Result ◽  
Business Software ◽  
Numerical Wave ◽  
Power Generation Device ◽  
Development Proceeds

This paper is based on the method of volume of fluid function (VOF) and founds numerical wave tank similar to real sea condition using business software CFD and its function of second development, proceeds numerical simulation of linear wave and second-order stokes and compares them with the theoretical value. The numerical result corresponds to the theoretical result, which lays the foundation for further research of interaction between wave and power generation device.

Numerical simulation of regular waves: Optimization of a numerical wave tank

2018 ◽  
Vol 170 ◽  
pp. 89-99 ◽  
Author(s):  
Fábio M. Marques Machado ◽  
António M. Gameiro Lopes ◽  
Almerindo D. Ferreira
Keyword(s):  
Numerical Simulation ◽  
Numerical Wave Tank ◽  
Regular Waves ◽  
Wave Tank ◽  
Numerical Wave

Numerical Simulation of Wave Overtopping Based on DualSPHysics

2013 ◽  
Vol 405-408 ◽  
pp. 1463-1471 ◽  
Author(s):  
Xing Ye Ni ◽  
Wei Bin Feng
Keyword(s):  
Numerical Simulation ◽  
Vertical Wall ◽  
Breaking Waves ◽  
Numerical Wave Tank ◽  
Regular Wave ◽  
Average Deviation ◽  
Wave Overtopping ◽  
Different Types ◽  
Numerical Wave ◽  
Run Up

To obtain a more detailed description of wave overtopping, a 2-D numerical wave tank is presented based on an open-source SPH platform named DualSPHysics, using a source generation and absorption technology suited for SPH methods with analytical relaxation approach. Numerical simulation of regular wave run-up and overtopping on typical sloping dikes is carried out and satisfactory agreements are shown between numerical results and experimental data. Another overtopping simulation of regular wave is conducted against six different types of seawalls (vertical wall, curved wall, recurved wall, 1:3 slope with smooth face, 1:1.5 slope with smooth face and 1:1.5 slope with stepped-face), which represents the details of various breaking waves interacting with different seawalls, and the average deviation of wave overtopping rate is 6.8%.

Simulation of Fully Nonlinear Waves Interaction With Submerged Breakwater in a Numerical Wave Tank

2007 ◽  
Author(s):  
Hoda M. El Safty ◽  
Alaa M. Mansour ◽  
A. G. Abul-Azm
Keyword(s):  
Boundary Integral ◽  
Linear Wave ◽  
Surface Boundary ◽  
Numerical Wave Tank ◽  
Tank Model ◽  
Wave Tank ◽  
Submerged Breakwater ◽  
Fully Nonlinear ◽  
Nonlinear Solution ◽  
Numerical Wave

The fully nonlinear wave interaction with submerged breakwaters that possess various configurations has been investigated using a fully nonlinear numerical wave tank model. In the numerical wave tank model, the fully nonlinear dynamic and kinematic free-surface boundary conditions have been applied and the boundary integral equation (BIE) solution to the Laplacian problem has been obtained using the Mixed Eulerian-Lagrangian (MEL) approach. Numerical results are presented for wave transmission for various breakwater and wave parameters. The model results have been verified against the available experimental data. The nonlinear solution has been compared with the results of other solutions based on the linear wave theory. Breakwater efficiency based on the nonlinear solution has been evaluated and compared for four different types of breakwater configurations, namely, vertical breakwater, sloped breakwater, breakwater with berm, and a pair of breakwaters.

Design of a New Oscillating Buoy Wave Power Generation Device

2013 ◽  
Vol 347-350 ◽  
pp. 1298-1302
Author(s):  
Chun Ming Duan ◽  
Yong Qiang Zhu
Keyword(s):  
Power Generation ◽  
Conversion Efficiency ◽  
Wave Theory ◽  
Energy Conversion Efficiency ◽  
Wave Power ◽  
Linear Wave ◽  
S Wave ◽  
New Energy ◽  
Power Generation Device ◽  
Wave Power Generation

With the deepening of global energy crisis, looking for the new energy to replace traditional energy become the only way for the development of energy. This paper designs a new oscillating buoy ocean wave power generation device. It introduces the basic composition of the device and its structure, and its working principle and process. Combining the wave theory and calculation principle, wave power conversion efficiency theory, analysis and calculate the energy conversion efficiency of the device. Suppose the device is under the action of linear wave, through the theoretical calculation, the theoretical efficiency of this device is up to 0.383 when the wave period is 4 s, wave height is 0.5 m, buoy Side length is 0.3m, wind pipe diameter is 0.05. Compared with common wave power generation device, this device has higher power generation efficiency.

Numerical Simulation on Wave Forces Acting on Superstructure of Twin-Decks Bridge

2010 ◽  
Vol 163-167 ◽  
pp. 4083-4088
Author(s):  
Xian Tang Zhang ◽  
Ai Rong Chen ◽  
Chen Wang ◽  
Kang Ning Gao
Keyword(s):  
Numerical Simulation ◽  
Model Test ◽  
Bridge Deck ◽  
Wave Forces ◽  
Design Engineering ◽  
Numerical Wave Tank ◽  
Ansys Fluent ◽  
Sea Bed ◽  
Numerical Wave ◽  
Experimental Values

Based on practice engineering and model test, and considering different bridge elevation, elevation of sea bed, and the different wave factor, the author uses the 2D numerical wave tank based on the software ANSYS FLUENT which is established by ourselves to carry on the numerical simulation to various models, and compares with the corresponding experimental values. The author verified that all the forces are descending with the increase of bridge elevation. The most dangerous bridge elevation under wave action exists in bridge design, so it should be avoided. The optimum elevation of the bridge deck is recommended +5.5 m, and some advices on practice design engineering are presented.

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