应用非线性谱分析法对随机波浪载荷的自由表面效应进行了研究，提出了一种新的计算模型。
The free surface effects of random wave forces are studied by means of nonlinear spectral analysis and a new calculating model is proposed.
计算表明，VOF紊流数学模型是一种处理复杂自由表面的有效方法。
The simulative computation indicates that the VOF turbulent flow mathematical model is an effective method for processing complex free surface.
CTOA的测定是通过高速摄影技术，建立裂尖裂纹断面与自由表面的三维关系模型。
CTOA is measured with the built three dimension function model of crack profile of the crack top and free profile through the high-speed photo technology.
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