Theoretical studies of eddy mixing

GSTDTAP

项目编号	1459702
	Theoretical studies of eddy mixing
	Glenn Flierl
主持机构	Massachusetts Institute of Technology
项目开始年	2015
	2015-03-01
项目结束日期	2018-02-28
资助机构	US-NSF
项目类别	Standard Grant
项目经费	351401(USD)
国家	美国
语种	英语
英文摘要	The overall goal of this study is to understand how material is transported by fluctuating motions in the ocean and the atmosphere. The project involves creating a number of models which can be run in real-time and can be used to illustrate visually the distinction between stirring and diffusion and the rapidity by which both together can homogenize a tracer. The approach can help in the understanding of the importance of eddies and weather systems in determining the transports and distributions of pollutants, components of ecosystems, heat, and ozone. The models will be made available on the web as well as in an interactive textbook on numerical fluid mechanics. The project includes training of a graduate student. This project will investigate eddy mixing processes using idealized flow models for which the diffusion can be precisely controlled. The specific aims of the study are to contribute to improved understanding of: (1) the ways in which fluxes are non-local (i.e., depend on more than just the value of the gradients of the mean at the point of interest), (2) the effects of inhomogeneities both in the means (where the non-local nature of stirring comes into play) and in the eddy properties, and (3) how fluxes for reacting fields such as biogeochemical variables differ from passive tracers. Simulations together with analytical methods will be used to gain a deeper insight into the processes acting and the interplay among them.
来源学科分类	Geosciences - Ocean Sciences
文献类型	项目
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/67651
专题	环境与发展全球科技态势
推荐引用方式 GB/T 7714	Glenn Flierl.Theoretical studies of eddy mixing.2015.