海洋埃克曼输运的分形方法

IF 1.9 4区地球科学 Q2 GEOCHEMISTRY & GEOPHYSICS

Dynamics of Atmospheres and Oceans Pub Date : 2024-04-23 DOI:10.1016/j.dynatmoce.2024.101459

Rami Ahmad El-Nabulsi , Waranont Anukool

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引用次数: 0

摘要

这项研究基于 Li 和 Ostoja-Starzewski 最近在各向异性连续介质表述中引入的积样分形度量概念，研究了分形维度下的海洋埃克曼海流动力学。我们的研究表明，流体的分形维数会影响速度剖面的振幅和形状。我们观察到，当分形维数远小于 1 时，会出现快速流动的水流，而当分形维数接近 1 时，则会出现缓慢流动的水流。较大的流速会导致剪切率降低和粘度增加，这在物理海洋学中已被观察到。

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A fractal approach to ocean Ekman transport

This work examines ocean Ekman current dynamics in fractal dimensions based on the concept of product-like fractal measure introduced recently by Li and Ostoja-Starzewski in their formulation of anisotropic continuum media. We show that fractal dimensions of the fluid affects the amplitude and the shape of the velocity profile. It was observed that fast-moving current occurs for fractal dimensions much less than unity whereas slow-moving current arises for fractal dimensions close to unity. A large flow velocity leads to a decrease in the shear rate and an increase in the viscosity, a fact that has been observed in physical oceanography.

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来源期刊

Dynamics of Atmospheres and Oceans 地学-地球化学与地球物理

CiteScore

3.10

自引率

5.90%

发文量

审稿时长

>12 weeks

期刊介绍： Dynamics of Atmospheres and Oceans is an international journal for research related to the dynamical and physical processes governing atmospheres, oceans and climate. Authors are invited to submit articles, short contributions or scholarly reviews in the following areas: •Dynamic meteorology •Physical oceanography •Geophysical fluid dynamics •Climate variability and climate change •Atmosphere-ocean-biosphere-cryosphere interactions •Prediction and predictability •Scale interactions Papers of theoretical, computational, experimental and observational investigations are invited, particularly those that explore the fundamental nature - or bring together the interdisciplinary and multidisciplinary aspects - of dynamical and physical processes at all scales. Papers that explore air-sea interactions and the coupling between atmospheres, oceans, and other components of the climate system are particularly welcome.