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为在波浪水槽内得到稳定的、重复性良好的波动过程,基于N-S方程和标准k-ε湍流模型,采用VOF方法追踪自由面,利用CFD商业软件FLUENT建立同时具有造波和消波功能的二维数值波浪水槽.基于线性波浪理论和UDF实现动边界造波和定义水质点速度造波,同时,在数值波浪水槽尾端通过在动量方程中添加附加源项的方法实现动量源消波.计算结果表明,基于FLUENT软件实现的二维数值波浪水槽工作特性良好.
In order to obtain stable and repetitive wave process in a wave tank, the free surface was tracked by the VOF method based on the Navier-Stokes equations and the standard k-ε turbulence model. The CFD commercial software FLUENT was used to establish two Dimensional wavy flume. Based on the linear wave theory and the UDF, the dynamic boundary wave and the wave velocity are defined. At the same time, the momentum source wave cancellation is realized by adding an additional source term to the end of the numerical wave tank. The results show that the 2D numerical wave flume based on FLUENT software has good working characteristics.