Collaborative Research: Frameworks: Multiphase Fluid-Structure Interaction Software Infrastructure to Enable Applications in Medicine, Biology, and Engineering

合作研究：框架：支持医学、生物学和工程应用的多相流固耦合软件基础设施

基本信息

批准号：
1931524
负责人：
Matthew Knepley
金额：
$ 50.44万
依托单位：
SUNY at Buffalo
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2020
资助国家：
美国
起止时间：
2020-01-01 至 2024-12-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1931524&HistoricalAwards=false
关键词：
Collaborative Research Frameworks Multiphase Fluid

项目摘要

Physical systems in which fluid flows interact with immersed structures are found in a wide range of areas of science and engineering. Such fluid-structure interactions are ubiquitous in biological systems, including blood flow in the heart, the ingestion of food, and mucus transport in the lung. Fluid-structure interaction is also a crucial aspect of new approaches to energy harvesting, such as wave-energy converters that extract energy from the motion of sea or ocean waves, and in advanced approaches to manufacturing, such as 3D printing. This award supports the development of an advanced computer simulation infrastructure for modeling this full range of application areas. Computer models advanced by this project could ultimately lead to improved diagnostics and treatments for human disease, optimized designs of novel approaches to renewable energy, and reduced manufacturing costs through improved production times in 3D printing.This project aims to enhance the IBAMR computer modeling and simulation infrastructure that provides advanced implementations of the immersed boundary (IB) method and its extensions with support for adaptive mesh refinement (AMR). IBAMR is designed to simulate large-scale fluid-structure interaction models on distributed memory-parallel systems. Most current IBAMR models assume that the properties of the fluid are uniform, but many physical systems involve multiphase fluid models with inhomogeneous properties, such as air-water interfaces or the complex fluid environments of biological systems. This project aims to extend recently developed support in IBAMR for treating multiphase flows by improving the accuracy and efficiency of IBAMR's treatment of multiphase Newtonian flows, and also by extending this multiphase flow modeling capability to treat multiphase complex (polymeric) fluid flows, which are commonly encountered in biological systems, and to treat reacting flows with complex chemistry, which are relevant to models of combustion, astrophysics, and additive manufacturing using stereolithography (3D printing). This project also aims to re-engineer IBAMR for massive parallelism, so that it may effectively use very large computational resources in service of applications that require very high fidelity. The project will also develop modules that will facilitate the use of image-derived geometries, and it will develop novel fluid-structure coupling schemes that will facilitate the use of independent fluid and solid solvers. These capabilities are motivated within this project by models of cardiac, gastrointestinal, and lung physiology; renewable energy; and advanced manufacturing. This software will be used in courses developed by the members of the project team. The project also aims to grow the community of IBAMR users by enhancing project documentation and training materials, hosting user group meetings, and offering short courses.This award by the NSF Office of Advanced Cyberinfrastructure is co funded by the Division of Civil, Mechanical, and Manufacturing Innovation to provide enabling tools to advance potentially transformative fundamental research, particularly in biomechanics and mechanobiology.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

流体流动与浸没结构相互作用的物理系统广泛存在于科学和工程领域。这种流体-结构相互作用在生物系统中普遍存在，包括心脏的血流、食物的摄入和肺部的粘液运输。流固相互作用也是能量收集新方法（例如从海浪运动中提取能量的波能转换器）以及先进制造方法（例如 3D 打印）的一个重要方面。该奖项支持开发先进的计算机模拟基础设施，用于对全方位的应用领域进行建模。该项目先进的计算机模型最终可能会改善人类疾病的诊断和治疗，优化可再生能源新方法的设计，并通过缩短 3D 打印的生产时间来降低制造成本。该项目旨在增强 IBAMR 计算机建模和模拟基础设施，提供浸没边界 (IB) 方法及其扩展的高级实现，并支持自适应网格细化 (AMR)。 IBAMR 旨在模拟分布式内存并行系统上的大规模流固耦合模型。目前大多数IBAMR模型都假设流体的属性是均匀的，但许多物理系统涉及属性不均匀的多相流体模型，例如空气-水界面或生物系统的复杂流体环境。该项目旨在通过提高 IBAMR 对多相牛顿流处理的准确性和效率，以及扩展这种多相流建模功能来处理多相复杂（聚合）流体流，从而扩展 IBAMR 最近开发的对多相流处理的支持。生物系统中遇到的问题，并用复杂的化学处理反应流，这与燃烧模型、天体物理学和使用立体光刻（3D 打印）的增材制造相关。该项目还旨在重新设计IBAMR以实现大规模并行性，以便它可以有效地使用非常大的计算资源来服务于需要非常高保真度的应用程序。该项目还将开发有助于使用图像衍生几何形状的模块，并将开发新颖的流体-结构耦合方案，以促进独立流体和固体求解器的使用。这些功能是由心脏、胃肠道和肺生理学模型在该项目中激发的；可再生能源；和先进制造。该软件将用于项目团队成员开发的课程中。该项目还旨在通过增强项目文档和培训材料、主办用户组会议和提供短期课程来发展 IBAMR 用户社区。该奖项由 NSF 高级网络基础设施办公室颁发，并由土木、机械和工程部门共同资助。制造创新提供有利的工具来推进潜在的变革性基础研究，特别是在生物力学和机械生物学方面。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。