粘弹可瘪管的位移振荡研究

On Displacement Oscillation of Viscoelastical Collapsible Tube

本文建立了研究粘弹性可瘪管脉动流位移振荡的实验和理论模型，归结出了管壁位移振荡的控制方程，并应用摄动方法求出问题的摄动解。文章最后还给出了粘弹可瘪管位移振荡发生的判别准则和三种不同流动状态区域，并讨论了来流速度和管壁粘性等参数对这些区域的影响情况。

The experimental and theoretical model for studing displacement oscillation of collapsible tube are set up in the recent paper. The governing equation of the displacement oscillation is solved by using perturbation theory. A criterion has been presented for the prediction of the setting on of this new type oscillation, and three different flow state regions have been shown. The influence of flow velocity and tube wall viscosity on these regions is discussed, finally.