By using a particle image velocimetry (PIV), an experimental study was performed on the swirling flow of viscoelastic fluid with deformed free surface in a cylindrical container.

利用粒子图像测速仪(PIV)对圆筒形容器内有自由表面变形的粘弹性流体旋转流动进行了实验研究。

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The experimental research of the interaction between a free surface and the internal wave generated by a towed sphere in a stratified fluid is conducted in the water tank.

在静水槽中进行了分层流体中运动物体生成的内重力波与自由面相互作用的实验研究。

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Some engineering problems, especially those involving fluid free surface, are nonlinear in boundary conditions.

其中不少问题是非线性的，如带自由面的流动区域，边界条件即呈非线性。

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