给出了圆柱管的一些参数对相速度和衰减的影响。

Then, the influences of some parameters on phase speed and attenuation are analyzed.

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将覆盖层单元近似为粘弹性圆柱管，导出轴对称波的特征方程。

Approximating the unit of coating as hollow viscoelastic cylindrical shell, an eigen equation of the axisymmetric waves is derived.

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对多股射流与圆柱管中的横流湍流混合的三维流场进行了数值模拟。

The numerical simulation for the three dimensional turbulent flow field of multiply jets mixing with a confined crossflow in cylindrical duct is presented in this paper.

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