Research Initiation Award: Hydrodynamics of Fluid-filled Membrane in Gravity Waves

摘要9408939夏威夷大学马诺阿分校张国章：本项目采用数值和理论相结合的方法研究流体膜对重力波的流体动力学响应，以了解流体-膜相互作用。流体膜具有多种环境应用，包括用于防波堤，以及在现场修复期间或在洪水泛滥时临时储存受污染的水。在建模中，将重点解决与大规模浮膜系统相关的问题。首先计算流体场膜的静态平衡构型，同时考虑膜的大变形和起皱。然后，通过将有限元模型与边界元技术相结合的动力分析来研究填充薄膜对波浪的响应。现有的实验结果将被用来与模拟进行比较。

ABSTRACT CTS-9408939 University of Hawaii Manoa P.I.: Kwok Cheung This project uses numerical and theoretical techniques to study the hydrodynamic response of a fluid membrane to gravity waves in order to understand fluid-membrane interaction. Fluid-filed membranes have various environmental applications, including use in breakwaters and temporary storage of contaminated water during site remediation or at times of flooding. In the modeling, and emphasis will be placed on solving problems related to large scale floating membrane systems. The static equilibrium configuration of the fluid filed membrane will first be calculated accounting for both large deformations and wrinkling of the membrane. The response of the filled membrane to waves will then be studied by a dynamic analysis that couples the finite element model with a boundary element technique. Available experimental results will be used to compare with simulations.