Flow-induced oscillation in flexible tubes: experimental and numerical investigation of mechanism and onset

我们试图了解，当不稳定性出现在流动非常可变形的结构。 这将有助于我们设计高度灵活的结构，特别是为了避免流动引起的振荡的危险，这可能是有害的（心脏手术，帆，降落伞），或者在其他情况下，利用它们作为一种创新的方式，不涉及滑动部件机制，以产生振动，或流动脉动，或声音，或运动（如游泳池清洁器）。 在设计高度柔性管时的信心将允许在制造用于输送流体的产品时消耗最少的资源，并且将允许设计使用流动限制特性，由此这种管可以控制流速。

We seek to understand when instability arises in flow over very deformable structures. This will help us to design highly flexible structures specifically either to avoid the danger of flow-induced oscillations, which may be damaging (cardiac surgery, sails, parachutes), or in other circumstances to take advantage of them as an innovative way involving no sliding-parts mechanisms to create vibration, or flow pulsation, or sound, or motion (as in swimming-pool cleaners). Confidence in designing with highly flexible tubes will allow minimal resource consumption in manufacture of products to transport fluids, and will allow design use of the flow limitation property, whereby such a tube can control flow-rate.