FRG: Collaborative Research: New Challenges in the Dynamics of Thin Films and Fluid Interfaces

FRG：协作研究：薄膜和流体界面动力学的新挑战

• 批准号: 0244491
• 负责人: Michael Shearer
• 金额: $ 19.81万
• 依托单位: North Carolina State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-01 至 2007-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0244491&HistoricalAwards=false
• 关键词: FRG; Collaborative; Research; New; Challenges

This collaborative project among Duke University, the University of California at Los Angeles, and North Carolina State University involves research into an array of interrelated problems in the fluid dynamics of thin viscous films. It combines analytical, computational, and experimental approaches to fundamental issues concerning surfactant spreading, patterned surfaces, vibrational forcing, Marangoni flows, flows on curved surfaces, and spin-coating flows. Methods include the theory of nonlinear partial differential equations, scientific computing, mathematical modeling, asymptotics, and experiments. Connections will be made with applications such as the role of surfactants in lung physiology, and the emerging field of microfluidics. The weekly Focused Research Group meeting, a central organizing feature of the project, combines research and education by promoting discussion and interaction across disciplines, and among faculty, students, and post-docs. The central theme of this project is the study of how surface tension forces govern the motion of micro-scale fluids in many different settings. Progress in this basic research on thin liquid films will lead to new theoretical understanding of the physics of fluid flow on a microscopic scale, which is crucial to the emerging technology of microfluidic devices. These "labs on a chip" are transforming biotechnology in much the same way that microelectronics has transformed the computing industry. Contributions from this project will help to identify fluid flows and surface properties relevant to specific devices, as well as establishing the theoretical underpinnings for future research in this area. In addition to microfluidics, research will also be undertaken in the modeling of surfactant transport in the liquid lining of the lung. In developing new theory for this important physiological application, the research group will focus on how the surfactant changes surface tension, giving rise to a force that mobilizes the fluid coating of the lung walls. Development of theory, experiments, and numerical simulations in this project will involve ongoing interactions with scientists and engineers directly connected with the applications.

杜克大学、加州大学洛杉矶分校和北卡罗来纳州立大学之间的合作项目涉及对薄粘性薄膜流体动力学中一系列相互关联问题的研究。 它结合了分析、计算和实验方法来解决有关表面活性剂铺展、图案化表面、振动力、马兰戈尼流动、曲面上的流动和旋涂流动等基本问题。 方法包括非线性偏微分方程理论、科学计算、数学建模、渐近学和实验。 将与表面活性剂在肺生理学中的作用以及新兴的微流体领域等应用建立联系。 每周一次的重点研究小组会议是该项目的一个核心组织特征，通过促进跨学科以及教师、学生和博士后之间的讨论和互动，将研究和教育结合起来。 该项目的中心主题是研究表面张力如何在许多不同的环境中控制微尺度流体的运动。 这项薄液膜基础研究的进展将带来对微观尺度流体流动物理学的新理论理解，这对于微流体装置的新兴技术至关重要。 这些“芯片实验室”正在改变生物技术，就像微电子改变计算机行业一样。 该项目的贡献将有助于识别与特定设备相关的流体流动和表面特性，并为该领域的未来研究奠定理论基础。 除了微流体之外，还将研究肺液层中表面活性剂运输的模型。 在为这一重要的生理应用开发新理论时，研究小组将重点研究表面活性剂如何改变表面张力，从而产生动员肺壁液体涂层的力。 该项目中理论、实验和数值模拟的发展将涉及与直接与应用相关的科学家和工程师的持续互动。