How Do Animals Harness Water Entry and Exit Dynamics?

动物如何利用水的进出动力学？

• 批准号: 1205642
• 负责人: Sunny Jung
• 金额: $ 51.04万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-02-15 至 2017-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1205642&HistoricalAwards=false
• 关键词: How; Do; Animals; Harness; Water

In this project the PI will synergistically integrate biological and state of the art quantitative experiments along with mathematical modeling to investigate the interfacial dynamics of coupled water entry and exit problems as manifested in animal systems. This work will focus on biological behaviors that include both water exit and entry, in particular focusing on locomotion on the water surface and animal drinking. This offers a unique underlying opportunity: to learn how nature uses the interaction of these forces and thereby develop the knowledge that will enable novel bioengineering and bio-inspired systems. The PI's approach will use mathematics, biology and engineering to investigate the hydrodynamic principles that underlie and enable specific animal water entry and exit behaviors, as well as to develop mathematical models for such complex dynamics. The PI will identify how differences in animal movement patterns, body size, and surface characteristics relate to differences in performance in fluid transport (drinking) and fluid force generation (locomotion across or through interfaces). In the modeling of interfacial dynamics, the PI will develop water exit models and also modify the current theory to integrate water entry followed by exit, as suggested by relevant aspects of animal movements. In physical experiments, the effort will quantify processes of water entry and exit with various well-controlled parameters. This approach provides a complete framework that has not been implemented in these systems before. This project will provide interdisciplinary training for graduate and undergraduate students by training them in fluid mechanics, biomechanics and biology as well as in experimental methods combined with rigorous mathematical modeling.

在这个项目中，PI将协同整合生物学和最先进的定量实验沿着数学建模，以研究耦合水进入和退出问题的界面动力学，如在动物系统中所表现的。这项工作将集中在生物行为，包括水的出口和入口，特别是集中在水面上的运动和动物饮水。这提供了一个独特的潜在机会：了解自然如何利用这些力量的相互作用，从而发展知识，使新的生物工程和生物启发的系统。PI的方法将使用数学，生物学和工程学来研究流体动力学原理，这些原理是特定动物进出水行为的基础，并为这种复杂的动力学建立数学模型。PI将确定动物运动模式、体型和表面特征的差异如何与液体运输（饮水）和流体力产生（穿过或穿过界面的运动）的性能差异相关。在界面动力学建模中，PI将开发水出口模型，并修改当前理论，以整合水进入后再出口，如动物运动的相关方面所建议的那样。在物理实验中，这项工作将量化水的进入和退出的过程与各种良好的控制参数。这种方法提供了一个完整的框架，以前没有在这些系统中实现过。该项目将为研究生和本科生提供跨学科培训，培训他们流体力学，生物力学和生物学以及与严格的数学建模相结合的实验方法。