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Numerical wave tank for the application in ocean engineering
SCIENTIA SINICA Physica, Mechanica & Astronomica, 2011采用FLUENT 软件中的用户自定义函数功能和动网格功能进行造波和消波, 采用VOF 方法捕捉自由液面, 开发了一个数值波浪水池, 该水池可以生成规则波浪、按照波谱生成不规则波浪以及生成既定的不规则波波列. 文中开展了网格和时间步长试验, 力图找到经济精确的网格划分方案和高效的时间步长方案. 文中按照Jonswap 谱进行了不规则波浪的数值模拟, 采用了等分能量法分解波谱的频率区间来得到组成波的 圆频率, 模拟结果显示计算波谱与目标波谱一致, 波浪的统计特征得到了很好的体现, 模拟不规则波波谱的 缺点是耗时过长. 由于真实海况下对海洋浮式结构物造成损坏的往往不是整个波浪时间序列, 而是少数的几个大波或者波列中的波群.
XiuFeng LIANG +4 more
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Fully nonlinear viscous wave generation in numerical wave tanks
Ocean Engineering, 2013Abstract A numerical method for simulating the complete physics of the fully nonlinear viscous wave generation phenomenon is presented. To accomplish this objective, the motion of a solid body representing the wave generating mechanism is modeled. In this paper, both the piston-type and flap-type wavemakers are simulated and the results of the model ...
M. Anbarsooz +2 more
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Numerical Simulation of Linear and Nonlinear Waves in the Numerical Wave Tank
2023 IEEE 11th International Conference on Computer Science and Network Technology (ICCSNT), 2023Xiaoqin Chang, Qiutong Tan, Gang Xu
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A Numerical Model for Wave Diffraction in Fully Nonlinear Wave Tank
OCEANS 2006 - Asia Pacific, 2006A numerical model in the time domain is developed for a numerical wave tank (NWT) with the fully nonlinear (or exact) free surface boundary conditions. In this model, an indirect desingularized boundary element method (DBEM) is employed to solve the boundary value problem of velocity potential at each time step and the mixed Eulerian-Lagrangian (MEL ...
X. T. Zhang, B. C. Khoo, J. Lou
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Properties and Capabilities of a Physical and Numerical Wave Tank
Volume 4: CFD, FSI and AIAbstract The idea of a numerical test tank is to have a computational fluid dynamics (CFD) setup, closely modeled after an existing wave tank. Such a pair of real and virtual test tank serves two main purposes: The experiments allow to validate the CFD model, and in turn the CFD model allows to study a variety of test parameters before ...
Jesper van der Meij +2 more
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Linear and nonlinear irregular waves and forces in a numerical wave tank
Ocean Engineering, 2002A time-domain higher-order boundary element scheme was utilized to simulate the linear and nonlinear irregular waves and diffractions due to a structure. Upon the second-order irregular waves with four Airy wave components being fed through the inflow boundary, the fully nonlinear boundary problem was solved in a time-marching scheme. The open boundary
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Evolution of Porous Boundary Condition in Numerical Wave Tank
Ocean Engineering, 2022Rajendra Kumar, Balaji Ramakrishnan
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NUMERICAL ANALYSIS OF WAVE GENERATION IN A WAVE TANK
e-Journal of New World Sciences Academy, 2016Ahmet Koca, Halil İbrahim Yamaç
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Development of a CFD-based numerical wave tank of a novel multipurpose wave energy converter
Renewable Energy, 2022Daniel Oliveira +2 more
exaly