Fully resolved simulation of self-propelling fish

自航鱼的完全解析模拟

• 批准号: 0828749
• 负责人: Neelesh Patankar
• 金额: $ 33万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-09-01 至 2012-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0828749&HistoricalAwards=false
• 关键词: Fully; resolved; simulation; self; propelling

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.

CBET-0828749帕坦卡游泳和飞行动物非凡的移动性背后的物理原理一直是多年努力的主题，仍然有很多不理解的。本研究开发了一种有效的数值方法，用于完全分辨模拟生物体的自推进，称为完全分辨的自推进动量重新分配（FuRMoRP）。它将被用于研究游泳的鱼类;然而，它对小型飞行动物也有足够的通用性。开发这种工具的动机是双重的：首先，开发高分辨率的高效流体模拟技术，该技术通过其对许多跨学科领域产生重大影响的潜力而具有变革性;第二，为了深入了解水中运动的一些基本问题，这也将导致对小说设计的深入了解，高度可拆卸的水下航行器正在通过Co-PI实验室的一个单独项目进行开发。鱼的可操作性和效率激发了水下航行器的新型推进和操纵，用于海底勘探和环境监测等应用。这种车辆的发展将取决于解决开放的问题，在水上运动，将在这里使用FuRMoRP应用于三个重要的游泳模式和鱼类形态进行研究。PI希望回答具体的问题：给定三种鱼类型，什么是最有效的变形运动学？ 它们与实验观察到的步态相比如何？它们的相对效率如何？教育计划包括开发新的研究生和本科生课程，流体动画解释生物流体动力学原理，一本书的项目，和国际推广。在推广方面，PI将与世界著名的芝加哥谢德水族馆合作，帮助开发一个更具教育意义的电鳗展示。展览将提供实时的声音和视觉提示给参观者，帮助他们欣赏一些流体动力学科学和电鳗的美丽。