EAPSI: How Bats Drink While Flying: Lessons for the Design of a Water Skimming Air Vehicle

EAPSI：蝙蝠在飞行时如何喝水：撇水飞行器设计的经验教训

• 批准号: 1514718
• 负责人: Sean Gart
• 金额: $ 0.53万
• 依托单位: Gart Sean W
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-06-01 至 2016-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1514718&HistoricalAwards=false
• 关键词: EAPSI; How; Bats; Drink; While

Many bats hunt prey over bodies of water. During this high-energy hunting activity they hydrate themselves by swooping down to the water surface and dragging their tongue across the surface to splash water into the mouth all while maintaining flight stability. This drinking while flying behavior is unique in nature and could give insight into the design of an air vehicle capable of quickly sampling large bodies of water. To study this behavior bats will be filmed while drinking in a lab with an array of high-speed cameras. Experiments will be conducted at the Shandong University ? Virginia Tech International Laboratory in Jinan, China in collaboration with Dr. Rolf Mueller, an expert in bat physiological form and function and bat biosonar systems. The kinematics and fluid dynamics of bat drinking are unparalleled in nature and have not been investigated as of yet. Biological experiments in a laboratory setting will be performed to characterize drinking parameters like the angle of attack, velocity, head and body position, and tongue movement of the bats while they drink. From the fluid dynamics perspective, understanding the interplay between the air/water interface and mouth/tongue is essential. The nature of the splash and how much water is transported into the mouth will be characterized using a high-speed camera array. The goal of proposed experiments is to develop a physical framework of the distinctive bat drinking while flying behavior that could give insights into the design of a water-skimming air vehicle. This NSF EAPSI award supports the research of a U.S. graduate student and is funded in collaboration with the Chinese Ministry of Science and Technology.

许多蝙蝠在水体中捕食。在这种高能量的狩猎活动中，它们会俯冲到水面并将舌头拖过水面将水溅入嘴中，同时保持飞行稳定性。这种飞行时的饮水行为本质上是独一无二的，可以让我们深入了解能够快速采样大片水域的飞行器的设计。为了研究这种行为，实验室将使用一系列高速摄像机对蝙蝠喝酒时进行拍摄。实验将在山东大学进行？位于中国济南的弗吉尼亚理工大学国际实验室与蝙蝠生理形态和功能以及蝙蝠生物声纳系统专家 Rolf Mueller 博士合作。蝙蝠饮水的运动学和流体动力学在本质上是无与伦比的，迄今为止尚未得到研究。将在实验室环境中进行生物学实验，以表征蝙蝠饮酒时的攻击角度、速度、头部和身体位置以及舌头运动等饮酒参数。从流体动力学的角度来看，了解空气/水界面和嘴/舌头之间的相互作用至关重要。飞溅的性质以及有多少水被输送到口腔中将使用高速摄像机阵列来表征。拟议实验的目标是开发一个独特的蝙蝠飞行时饮水行为的物理框架，这可以为撇水飞行器的设计提供深入的见解。该 NSF EAPSI 奖项支持美国研究生的研究，并由与中国科学技术部合作资助。