UNS: Collaborative Research: Fluid mechanical basis of universal natural propulsor bending patterns

UNS：合作研究：通用自然推进器弯曲模式的流体力学基础

基本信息

批准号：
1511996
负责人：
Brad Gemmell
金额：
$ 8.95万
依托单位：
University of South Florida
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：
2015-08-01 至 2019-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1511996&HistoricalAwards=false
关键词：
UNS Collaborative Research Fluid mechanical

项目摘要

#1511721 / #1511333 / #1510929 / #1511996Costello, John H. / Dabiri, John, Colin, Sean / Gemmell, BradThe goal of the proposed study is to investigate the mechanisms by which different swimming animals propel and maneuver themselves in order to identify common flow characteristics. Results of this work will be applicable to the engineering of vehicles that can bend and twist, mimicking efficient swimmers from nature.Efficient swimmers in nature appear to exhibit common traits in the bending and twisting of their bodies. While the effects of other morphological characteristics of swimmers have been explored, this is an area that we do not have a good understanding. The basic hypothesis is that the bending kinematics among various species are similar, and these unifying characteristics need to be discovered. Validation of the hypothesis to the broader animal kingdom will be tested using animal informatics. The proposed work focuses on the study of the propulsion of three different model animals (jellyfish, pteropods and lamprey), so that the common swimming traits can be identified, characterized and theoretically analyzed. State-of-the-art experimental techniques (such as 2D and 3D particle image velocimetry and holographing imaging) will be used to quantify the flow, the forces, the torque and the pressure fields generated during bending by these animal models. The final goal is to provide not only quantitative but also predictive evaluation of the fluid dynamic effects of propulsor bending.

#1511721 / #1511333 / #1510929 / #1511996Costello, John H. / Dabiri, John, Colin, Sean / Gemmell, Brad 这项研究的目标是调查不同游泳动物推动和操纵自身的机制，以便识别共同的流动特性。这项工作的结果将适用于能够弯曲和扭转的车辆工程，模仿自然界中高效的游泳者。自然界中高效的游泳者似乎在身体弯曲和扭转方面表现出共同的特征。虽然人们已经探索了游泳者其他形态特征的影响，但我们对此还没有很好的了解。基本假设是不同物种之间的弯曲运动学是相似的，并且需要发现这些统一特征。将使用动物信息学来测试对更广泛的动物界的假设的验证。拟议的工作重点研究三种不同模型动物（水母、翼足类动物和七鳃鳗）的推进力，以便识别、表征和理论分析常见的游泳特征。最先进的实验技术（例如 2D 和 3D 粒子图像测速和全息成像）将用于量化这些动物模型在弯曲过程中产生的流动、力、扭矩和压力场。最终目标是不仅提供对推进器弯曲的流体动力学效应的定量评估，而且提供预测评估。