Biomimetic pumping by active gill plate arrays: the fluid dynamics of mayfly naiads

主动鳃板阵列的仿生泵送：蜉蝣幼虫的流体动力学

• 批准号: 0730907
• 负责人: Kenneth Kiger
• 金额: $ 21万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2010-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0730907&HistoricalAwards=false
• 关键词: Biomimetic; pumping; active; gill; plate

PROPOSAL NUMBER: CBET - 0730907 PRINCIPLE INVESTIGATOR: Kiger, Kenneth T. INSTITUTION: University of Maryland College Park Biomimetic pumping by active gill plate arrays: the fluid dynamics of mayfly naiadsThis study focuses on mayfly naiads (nymphs) as a possible biological model for the efficient generation of external circulation currents in low to intermediate Reynolds number flows. A distinctive feature of the mayfly naiad is the presence of 7 pairs of gill plates on the lateral dorsal region of the abdomen, which in many species actively beat in a metachronal fashion to produce an external current. This external ventilation aids in the circulation of fresh oxygenated water and allows mayflies to tolerate fluctuations in oxygen concentrations. To maximize the ability to survive in poorly oxygenated conditions, one would speculate that such ventilation currents should maximize the convective flow rate with minimal energy consumption. Understanding the flow mechanics of this living platform may then also provide useful insights for the optimization of convective flow generation for future generations of autonomous micro-sensor platforms. The PI plans to determine how an array of oscillating elements effectively maximize the production of a circulation current as it transitions between a viscous-dominated and an inertia-dominated regime and determine how the performance of an oscillating appendage affected by structural flexibility and the coupled response dictated by the fluid-structure interaction. The broader impacts of the work will span several areas, including the development of a knowledge base appropriate for the design of novel ventilation devices for fast and reliable chemical and biosensor networks. Meaningful Integration of High School and Undergraduate Students in Research. The project will serve as a motivational component for describing the research aspects of engineering science to High School seniors through presentation in an annual summer program host at UMD. Finally, the questions to be answered in this research will form the basis of material to be included in a recently created upper level biomechanics course offered within the Department of Mechanical Engineering.

提案编号：CBET - 0730907主要评审员：Kiger，Kenneth T.机构：马里兰州大学公园的仿生泵的积极鳃板阵列：蜉蝣naiads的流体动力学这项研究的重点是蜉蝣naiads（）作为一个可能的生物模型，有效地产生外部循环电流在低到中等雷诺数的流动。蜉蝣naiad的一个显着特征是存在7对鳃板上的腹侧背侧区域，在许多物种中，积极跳动的异时方式产生外部电流。这种外部通风有助于新鲜含氧水的循环，并允许蜉蝣忍受氧气浓度的波动。为了最大化在氧合不良的条件下生存的能力，人们会推测这种通风流应该以最小的能量消耗最大化对流流速。了解这个生活平台的流动机制，然后还可以提供有用的见解，为未来几代自主微传感器平台的对流生成的优化。PI计划确定一系列振荡元件如何有效地最大限度地产生循环电流，因为它之间的粘性为主和惯性为主的制度过渡，并确定如何影响结构的灵活性和耦合响应的流体-结构相互作用的振荡附件的性能。这项工作的更广泛影响将跨越几个领域，包括开发适合于设计新型通风设备的知识库，以实现快速可靠的化学和生物传感器网络。 高中生和本科生在研究中的有意义的整合。 该项目将作为一个激励性的组成部分，通过在UMD的年度夏季节目主持人介绍工程科学的研究方面给高中高年级学生。最后，在这项研究中要回答的问题将形成材料的基础，包括在最近创建的上层生物力学课程内提供的机械工程系。