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CAREER: Fluid-Structure Interaction (FSI) in Biological Flows

职业：生物流中的流固耦合 (FSI)

基本信息

批准号：
1453982
负责人：
Iman Borazjani
金额：
$ 50.38万
依托单位：
SUNY at Buffalo
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2015
资助国家：
美国
起止时间：
2015-02-01 至 2018-05-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1453982&HistoricalAwards=false
关键词：
CAREER Fluid Structure Interaction FSI

项目摘要

1453982BorazjaniThe proposed CAREER project is focused on the computational investigation of the fluid physics in cases where fluid flow interacts with the solid in contact with the fluid. This research area is known as Fluid Structure Interaction (FSI), and it is an area of vigorous research in the past few years. The goal of this research is to explore swimming and propulsion in aquatic environments, cardiovascular flows, as well as energy harvesting with wind turbines, by first developing accurate simulation techniques and then exploring the conditions that lead to energy efficiency. Educational activities that promote STEM to students, teachers and the public are also proposed. The PI proposes to address two issues in FSI, one is a numerical issue that refers to the rigorous selection of an appropriate preconditioner for simulating FSI problems, while the second is a physics issue related to the physics of flow around solids. The discovery of robust preconditioners, as proposed here, can affect the development of Computational Fluid Dynamics technologies for other problems, where computations in parallel are needed. The physics to be investigated are focused on the hypothesis put forth by the PI that a leading-edge-vortex (LEV) is formed in aquatic swimming, and that this LEV can be stabilized or controlled. A stable LEV leads to energy savings. There is also an extensive outreach and education plan that includes the operation of a YouTube channel, activities for professional development of local teachers and outreach activities to the Buffalo Museum of Science.

1453982 borazjani拟议的CAREER项目侧重于流体流动与与流体接触的固体相互作用情况下流体物理的计算研究。这一研究领域被称为流体-结构相互作用（FSI），是近年来研究的热点。这项研究的目标是通过首先开发精确的模拟技术，然后探索导致能源效率的条件，探索在水生环境中游泳和推进、心血管流动以及风力涡轮机的能量收集。还建议开展教育活动，向学生、教师和公众推广STEM。PI建议解决FSI中的两个问题，一个是数值问题，指的是严格选择合适的预处理条件来模拟FSI问题，而第二个是与固体周围流动的物理问题相关的物理问题。鲁棒预条件的发现，正如这里所提出的，可以影响计算流体动力学技术在其他问题上的发展，在这些问题上需要并行计算。本文研究的物理问题主要集中在PI提出的在水中游泳过程中会形成一个前缘涡，并且这个前缘涡是可以稳定或控制的假设上。稳定的LEV可以节约能源。还有一个广泛的推广和教育计划，包括运营一个YouTube频道，为当地教师的专业发展开展活动，以及向布法罗科学博物馆开展推广活动。