Based on the analysis on ventilation system, the calculation region of rotary fluid field is plotted out and meshed in unstructured grid.

本文通过对水轮发电机通风系统的分析，确定了旋转流体场计算区域，采用非结构化网格对计算区域进行离散。

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Based on experimental analysis and theoretical calculation, the wave velocity field has been obtained, which is used to calculate the wave height after breaking by VOF (Volume of Fluid) method.

首先通过实验测量和理论计算得到波浪崩破时的速度场，然后根据该速度场利用VOF法计算波浪破碎后的波高值；

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Considering the physical process of MIG welding, the numerical analysis model of the fluid flow and the temperature field has been developed.

综合考虑MIG焊接物理过程，建立了MIG焊接熔池流场和温度场的数值分析模型。

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