Matched experiments and numerical simulations of flow-induced oscillations in uniform and tapered-stiffness collapsible tubes

均匀刚度和锥形刚度溃缩管中流激振荡的匹配实验和数值模拟

• 批准号: LX0348113
• 负责人: A/Prof Christopher Bertram
• 金额: $ 0.27万
• 依托单位: The University of New South Wales
• 依托单位国家: 澳大利亚
• 项目类别: Linkage - International
• 财政年份: 2003
• 资助国家: 澳大利亚
• 起止时间: 2003-01-01 至 2004-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LX0348113
• 关键词: Matched; experiments; numerical; simulations; flow

Flexible tubes that can be flattened are widespread in the body and can act to limit flow-rate. Limitation is usually associated with spontaneous oscillation (repetitive opening and closing). There are many candidate explanations, but none has been shown to correspond with a given experiment. Through computer models and matched experiments on this coupled system (the fluid flow interacts with the tube shape), we seek to demonstrate for the first time that a given theory/computer model encompasses the physics controlling a given observed oscillation. The solution will find application in other flexible-structure design problems in engineering, and also potentially in medicine.

可以变平的柔性管在体内广泛分布，并且可以起到限制流速的作用。 限制通常与自发振荡（重复打开和关闭）有关。 有许多候选解释，但没有一个被证明与给定的实验相对应。 通过计算机模型和匹配的实验，这个耦合系统（流体流动与管的形状相互作用），我们试图证明第一次，一个给定的理论/计算机模型包括物理控制一个给定的观察到的振荡。 该解决方案将在工程中的其他柔性结构设计问题中找到应用，并且也可能在医学中找到应用。