U.S.-France Cooperative Research: Transport and Mixing in Rotating Stratified Geophysical Flows Using Spectral and Wavelet Numerical Methods

9910001Nicolaenko这个为期三年的美法合作应用数学奖获得者包括亚利桑那州立大学的Basil Nicolaenko、Harindra Fernando、Alex Mahalov和加州大学圣巴巴拉分校的Igor Mezic。法国团队由法国巴黎诺曼高等学院的玛丽·法奇领导，成员包括来自格勒诺布尔、卡尚和里昂的法国研究人员。合作的目标是通过使用自适应伪谱和自适应小波方法的数值模拟来研究充分发展的湍流区域中的地球物理流动。将为两到三个空间维度的不同模型开发几个数值程序，包括被动和被动标量的旋转、分层和传输。该奖项代表了美国方面向NSF和法国国家科学研究中心(CNRS)提出的联合建议。NSF将支付美国调查人员和研究生的旅费和生活费。CNRS将支持法国研究人员访问美国。这种合作是跨学科的。美国和法国的团队代表了应用数学、流体力学、气象学和化学方面的专业知识。该项目将促进对环境流代码开发的理解，这些环境流应用于空气污染、臭氧消耗(例如，在南极)，并在平流层的惯性重力波中发挥作用。

9910001NicolaenkoThis three-year award for U.S.-France collaboration in applied mathematics involves Basil Nicolaenko, Harindra Fernando, Alex Mahalov and a graduate student from Arizona State University, and Igor Mezic of the University of California at Santa Barbara. The French team is led by Marie Farge at the Ecole Normale Superieure in Paris, France and includes French researchers from Grenoble, Cachan, and Lyon. The objective of the collaboration is the study of geophysical flows in fully developed turbulent regime by means of numerical simulations using adaptive pseudo-spectral and adaptive wavelet methods. Several numerical codes for different models in two to three spatial dimensions, with and without rotation, stratification and transport of passive and reactive scalars will be developed. This award represents the U.S. side of a joint proposal to the NSF and the French National Center for Scientific Research (CNRS). NSF will cover travel funds and living expenses of the U.S. investigators and graduate student. The CNRS will support the French researchers' visits to the United States. The collaboration is interdisciplinary. U.S. and French teams represent expertise in applied mathematics, fluid mechanics, meteorology and chemistry. The project will advance understanding of code development for environmental flows that have applications in air pollution, ozone depletion (in Antarctic, for example), and have a role in inertio-gravity waves in the stratosphere.