Fully resolved simulation of self-propelling fish

游泳和飞行动物非凡的机动性背后的物理原理是多年来人们努力研究的主题，但仍有许多未解之谜。本研究开发了一种有效的生物自推进全分辨模拟的数值方法，称为自推进全分辨动量重分布（FuRMoRP）。它将被用来研究游动的鱼类；然而，对于小型飞行动物来说，它也足够普遍。开发这种工具的动机有两个方面：首先，开发一种高分辨率、高效的流体模拟技术，这种技术具有变革性，可能对许多跨学科领域产生重大影响；第二，深入了解水中运动的一些基本问题，这也将有助于通过Co-PI实验室的一个单独项目开发一种新颖的、高机动性的水下航行器的设计。鱼类的机动性和效率激发了水下航行器推进和操纵的新风格，用于海底勘探和环境监测等应用。这种交通工具的发展将取决于解决水中运动中悬而未决的问题，这里将使用应用于三种重要游泳模式和鱼类形态的FuRMoRP进行研究。pi希望回答具体的问题：三种给定鱼类的最有效的变形运动学是什么？它们与实验观察到的步态相比如何？它们的相对效率是多少？教育计划包括开发新的研究生和本科生课程，解释生物流体动力学原理的流体动画，图书项目和国际推广。在外联方面，pi将与世界著名的芝加哥谢德水族馆合作，帮助开发更具教育意义的电鳗展示。显示器将提供实时的声音和视觉提示，帮助游客欣赏一些流体动力学科学和电鳗之美。

CBET-0828749PatankarThe physical principles underlying the extraordinary mobility of swimming and flying animals have been the subject of years of effort and there is still much that is not understood. This study develops an efficient numerical method for fully resolved simulation of self-propulsion of organisms called Fully Resolved Momentum Redistribution for self Propulsion (FuRMoRP). It will be used to study swimming fish; however, it is sufficiently general to function for small flying animals as well. The motivation to develop such a tool is two-fold: first, to develop a high resolution efficient fluid simulation technology that is transformational by its potential to significantly impact many interdisciplinary areas; second, to gain insight into a number of fundamental problems in aquatic locomotion which will also lead to insights into the design of a novel, highly-maneuverable underwater vehicle being developed through a separate project in the Co-PI's lab. The maneuverability and efficiency of fish is inspiring new styles of propulsion and maneuvering in underwater vehicles for applications such as undersea exploration and environmental monitoring. The development of such vehicles will depend on the resolution of open issues in aquatic locomotion which will be studied here using FuRMoRP applied to three important swimming modes and fish morphologies. The PIs hope to answer specific questions: What is the most efficient deformation kinematics three given fish types? How do they compare with experimentally observed gaits? What are their comparative efficiencies? The education plan involves developing new graduate and undergraduate courses, fluid animations for explanation of biofluid-dynamic principles, a book project, and international outreach. For outreach, the PIs will work with the world renowned Shedd Aquarium in Chicago to help develop a more educational display of the electric eels. The display will provide real-time acoustic and visual cues to the visitors to help them appreciate some of the fluid dynamical science and beauty of the electric eels.