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Turbulence and Coral Reefs.
Annual Review of Marine Science ( IF 14.3 ) Pub Date : 2021-01-04 , DOI: 10.1146/annurev-marine-042120-071823
Kristen A Davis 1 , Geno Pawlak 2 , Stephen G Monismith 3
Affiliation  

The interaction of coral reefs, both chemically and physically, with the surrounding seawater is governed, at the smallest scales, by turbulence. Here, we review recent progress in understanding turbulence in the unique setting of coral reefs—how it influences flow and the exchange of mass and momentum both above and within the complex geometry of coral reef canopies. Flow above reefs diverges from canonical rough boundary layers due to their large and highly heterogeneous roughness and the influence of surface waves. Within coral canopies, turbulence is dominated by large coherent structures that transport momentum both into and away from the canopy, but it is also generated at smaller scales as flow is forced to move around branches or blades, creating wakes. Future work interpreting reef-related observations or numerical models should carefully consider the influence that spatial variation has on momentum and scalar flux.

中文翻译:


湍流和珊瑚礁。

珊瑚礁在化学和物理上与周围海水的相互作用在最小范围内受湍流控制。在这里,我们回顾了在了解珊瑚礁独特环境中的湍流方面的最新进展-湍流如何影响珊瑚礁冠层上方和内部复杂的几何形状内外的流动以及质量和动量的交换。礁石上方的水流由于其较大且高度不均匀的粗糙度以及表面波的影响而与规范的粗糙边界层不同。在珊瑚冠层中,湍流以大型连贯结构为主导,该结构将动量传入或传出冠层,但由于流被迫围绕树枝或叶片运动而产生尾流时,湍流也以较小的比例产生。

更新日期:2021-01-05
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