Numerical Simulation on Wave Force Acting on the Hollow Blocks

In order to study the wave force acting on the hollow blocks structures locating at the permeable foundation under the regular wave flume, the wave tank is established basing on improved N-S Equations. And the moving boundary’s generating wave and wave absorption of momentum source are adopted in the numerical wave flume. It can also be simulated permeable foundation by porous media module. Then mathematical model can be constructed under the interaction between waves and hollow block when PISO is used to couple velocity and pressure fields. At the same time, the numerically calculated results of the wave force acting on the hollow blocks are compared with the experimental data in agreement. In conclusion, the variation of the wave force with incident wave height and period is obtained through the numerical calculation.

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Simulation of Wave-Maritime Structure Interactions by Using a Numerical Wave Flume

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.588-589.1376 ◽

2012 ◽

Vol 588-589 ◽

pp. 1376-1379

Author(s):

Qin Jiang ◽

Chang Kuan Zhang

Keyword(s):

Experimental Data ◽

Computer Aided Design ◽

Design Tool ◽

Coastal Protection ◽

Numerical Wave Flume ◽

Wave Flume ◽

Computer Aided ◽

Numerical Wave ◽

Aided Design ◽

Protection Structures

A numerical wave flume (CADMAS-SURF/2D) developed on the basis of NASA-VOF technique is used to simulate interactions between waves and maritime structures in order to verify its feasibility to maritime structure designs. Examinations and comparisons of the calculated results of wave impacts on typical maritime structures, such as caisson-type and composite breakwaters, with experimental data indicate that the numerical wave flume can be an effective computer aided design tool for the designs of coastal protection structures.

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Estimation of Wave Force Acting on Bridge Superstructures due to the 2011 Tohoku Tsunami

Journal of Disaster Research ◽

10.20965/jdr.2013.p0605 ◽

2013 ◽

Vol 8 (4) ◽

pp. 605-611 ◽

Cited By ~ 3

Author(s):

Shojiro Kataoka ◽

◽

Masahiro Kaneko

Keyword(s):

Highway Bridges ◽

Wave Theory ◽

Wave Force ◽

Wave Forces ◽

Numerical Wave Flume ◽

Wave Flume ◽

2011 Tohoku Tsunami ◽

Time Histories ◽

Numerical Wave ◽

Tohoku Tsunami

Wave forces acting on the superstructures of two highway bridges affected by the 2011 Tohoku tsunami, the Shin-Aikawa Bridge and the Yanoura Bridge, are estimated combining 2-D FDM and a numerical wave flume (CADMAS-SURF) analysis. The superstructure of the Shin-Aikawa Bridge was washed out and swept 500 m away by the backwash. The Yanoura Bridge suffered no damage even though it was completely submerged in the tsunami. Time histories of the tsunami wave height and flow velocity are calculated using 2-D FDM, based on the nonlinear long wave theory. Lateral and uplift forces acting on the superstructures due to the simulated tsunami are then analyzed by the numerical wave flume. Comparisons between the analytical wave forces and corresponding loading capacities account for the differences in damage to the two bridges.

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Numerical Simulation of Single Box Floating Breakwater in Time Domain

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.250-253.3634 ◽

2011 ◽

Vol 250-253 ◽

pp. 3634-3637

Author(s):

Yan Na Zheng ◽

Guo Hai Dong ◽

Ben Chao Guo ◽

Chang Ping Chen

Keyword(s):

Experimental Data ◽

Numerical Simulation ◽

Mathematical Model ◽

Time Domain ◽

Regular Wave ◽

Dissipation Energy ◽

Numerical Result ◽

Floating Breakwater ◽

Numerical Program ◽

Mooring Chain

Based on boundary element method, a mathematical model of single box floating breakwater with mooring chain under regular wave is developed in time domain. From the comparison with the experimental data, the numerical program can simulate the transmission coefficient variaty tendency well, while on the aspect of the quantity, the numerical result is always larger than the experimental one, for the ignorance of the friction and dissipation energy.

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Calculation of Regular Longitudinal Wave Force in MMG Model Based on CFD

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.423-426.1727 ◽

2013 ◽

Vol 423-426 ◽

pp. 1727-1731

Author(s):

Lin Jia Yang ◽

Yi Han Tao

Keyword(s):

Mathematical Model ◽

Longitudinal Wave ◽

3D Model ◽

Wave Force ◽

Ship Motion ◽

Hexahedral Mesh ◽

Numerical Wave Flume ◽

Wave Flume ◽

Mmg Model ◽

Cfd Method

Wave force is one of the most important environmental disturbing forces in ship motion mathematical model. Calculating the wave force in ship mathematical model is of a great importance about prediction of ships maneuverability. In order to calculate the longitudinal wave force in MMG ship motion mathematical model, the CFD method was used in this work to build numerical wave flume. The 3D model of M/V YUKUN and hexahedral mesh of the domain of the flow field were made. Software Fluent was used to simulate the motion of YUKUN in regular longitudinal waves, and the wave force acting on YUKUN was obtained. Finally, regression formula was built based on the simulation results.

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SOME PROBREMS ON OPEN BOUNDARY WITH WAVE DUMPING LAYER IN TUNAMI ANALYSIS BY NUMERICAL WAVE FLUME

Journal of Japan Society of Civil Engineers Ser B3 (Ocean Engineering) ◽

10.2208/jscejoe.69.i_706 ◽

2013 ◽

Vol 69 (2) ◽

pp. I_706-I_711

Author(s):

Tsunehiro SEKIMOTO

Keyword(s):

Open Boundary ◽

Numerical Wave Flume ◽

Wave Flume ◽

Numerical Wave

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Numerical Study of Wave Slamming on a Rectangular Slab

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.204-208.4971 ◽

2012 ◽

Vol 204-208 ◽

pp. 4971-4977

Author(s):

Ya Mei Lan ◽

Wen Hua Guo ◽

Yong Guo Li

Keyword(s):

Numerical Study ◽

Navier Stokes ◽

Governing Equations ◽

Reflected Waves ◽

Rans Equations ◽

Numerical Wave Flume ◽

Wave Flume ◽

Wave Slamming ◽

Numerical Wave ◽

Rectangular Slab

The CFD software FLUENT was used as the foundation to develop the numerical wave flume, in which the governing equations are the Reynolds-averaged Navier-Stokes (RANS) equations and the standard k~ε turbulence model. The wave generating and absorbing were introduced into the RANS equations as the source terms using the relaxation approach. A new module of the wave generating and absorbing function, which is suitable for FLUENT based on the volume of fluid method (VOF), was established. Within the numerical wave flume, the reflected waves from the model within the computation domain can be absorbed effectively before second reflection appears due to the wave generating boundary. The computational results of the wave pressures on the bottom of the rectangular slab were validated for the different relative clearance by the experimental data. Good agreements were found.

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