二维数值水槽波浪生成过程及波浪形态分析

为了弥补物理模型试验投资大、模型相似性差等缺点，利用数学模型进行流体力学研究越来越普遍。基于物理水槽造波原理，在FLUENT流体软件中通过设定造波板边界的运动来模拟实际造波板的运动过程，实现了二维规则波的数值模拟，并给出了波高随造波板运动周期、振幅及坐标的变化规律。对波浪形态的分析表明，利用本文研究的数值模拟方法所生成的波浪符合实际造波形态。通过改变边界条件，用该方法也可以实现二维不规则波和随机波的数值模拟。

Making Waves in 2-D Numerical Flume and Feature Analysis of the Numerical Waves

In the purpose of overcoming the shortages of physical model experiment, such as high investment and less similarities with the prototype,numerical models are used in the research of hydraulics. Based on the principle of wave generation in physical flume, the simulation of wave generator is presented by setting the movement border as a wave generator in the FLUENT, and the numerical simulation of the regularly two-dimensional wave is realized. It is also being recognized on the change of the wave height which varies according to the movement cycles, the vibration amplitude and the coordinate of the wave generator. The analysis of wave feature indicates that the numerically generated waves are comparable to the waves formed by physical wave generator. Using this method, the irregularly two-dimensional wave and random wave can also be realized by changing the boundary conditions.