U.S.-France Cooperative Research: Flow and Resuspension of a Suspension in a Pipe

这项为期三年的美法化学和运输系统合作项目涉及佐治亚理工学院、佛罗里达大学、马赛大学和巴黎综合理工学院的研究人员和学生。美国研究人员Jeffrey F. Morris和Jason E. Butler以及法国研究人员Elisabeth Guazzelli和Paul Manneville将合作进行管道中流体输送和固体颗粒悬浮的理论和实验研究。悬浮力学的观点-其中颗粒影响流动过程-和惯性的作用将被研究。重点讨论了管道中的颗粒分数和速度分布、流动结构和稳定性、含颗粒液体中的体应力。此次合作融合了美国和法国研究团队的实验和理论专长。这两种专业知识都存在于美国和法国的集团中。杰弗里·莫里斯以他的定量理论而闻名。法国调查人员的实验专业知识补充了这一点。该合作提供了一些独特的法国实验设施，这些设施配备了一个功能齐全的管道流动悬浮液实验回路。这种合作促进了对与颗粒运输有关的工程问题的理解。这些问题在许多工业和岩土工程领域和过程中都很重要，包括河流和海洋沉积物的运输和沉积。该奖项代表了美国方面对NSF和CNRS的平行提案。美国国家科学基金会将支付美国研究人员和学生的旅费和生活费。法国研究中心将支持法国研究人员和学生访问美国。

0129079MorrisThis three-year award for US-France collaboration in chemical and transport systems involves researchers and students at Georgia Institute of Technology, University of Florida, University of Marseilles, and the Ecole Polytechnique. The US investigators, Jeffrey F. Morris and Jason E. Butler, and the French investigators, Elisabeth Guazzelli and Paul Manneville, will collaborate on theoretical and experimental studies of fluid transport and suspension of solid particles in pipes (tubes). The suspension mechanical perspective - in which particles impact the flow processes - and the role of inertia will be studied. Particle fraction and velocity distributions in pipes, flow structures and stability, bulk stresses in particle-laden liquids are emphasized.The collaboration merges experimental and theoretical expertise of the US and French research teams. Both types of expertise reside in the US and French groups. Jeffrey Morris is known for his quantitative theories. This is complemented by the French investigator's experimental expertise. The collaboration provides access to some unique French experimental facilities equipped with a functioning experimental loop for pipe flow suspensions. This collaboration advances understanding of engineering problems related to particulate transport. These problems are important in numerous industrial and geotechnical areas and processes, including fluvial and oceanic sediment transport and deposition. This award represents the US side of parallel proposals to the NSF and the CNRS. NSF will cover travel funds and living expenses for the US investigator and students. The CNRS will support visits by French researchers and students to the United States.