Contribution of coherent vortices such as Langmuir cells to wind‐driven surface layer mixing
نویسندگان
چکیده
منابع مشابه
A study of mixing in coherent vortices using braiding factors
This paper studies the use of braiding fluid particles to quantify the amount of mixing within a fluid flow. We analyze the pros and cons of braid methods by considering the motion of three or more fluid particles in a coherent vortex structure. The relative motions of the particles, as seen in a space–time diagram, produces a braid pattern, which is correlated with mixing and measured by the b...
متن کاملCharacteristics of Coherent Structures in Marine Atmospheric Surface Layer
(ABSTRACT) Wind speed data of multi-heights have been examined to investigate the spatial and temporal characteristics of coherent structures in the near neutral marine atmospheric surface layer. With Taylor's hypothesis, the temporal velocity signals have been transformed to spatial fluctuations and then visualize these spatial velocity fluctuations to identify the coherent structures. It has ...
متن کاملContribution of mixing to upward transport across the tropical tropopause layer (TTL)
During the second part of the TROCCINOX campaign that took place in Brazil in early 2005, chemical species were measured on-board the high-altitude research aircraft Geophysica (ozone, water vapor, NO, NOy, CH4 and CO) in the altitude range up to 20 km (or up to 450 K potential temperature), i.e. spanning the entire TTL region roughly extending between 350 and 420 K. Here, analysis of transport...
متن کاملSimulation of the Largest Coherent Vortices (Rolls) in the Ekman Boundary Layer
Turbulence motions are often perceived as chaotic and unstructured. It has been observed however that the turbulence is frequently organized in semi-regular, persistent and large-scale coherent structures in realistic boundary layers. This study investigates such coherent structures, called rolls, in the non-stratified (Ekman) boundary layer on a rotated planet (the Earth). Large-eddy simulatio...
متن کاملIntroducing Fructose Syrup 55% as an Alternative to High Hydroxymethylfurfural (HMF) Products Such as Invert Sugar
Hydroxy Methyl Furfural (HMF) is a compound that is formed as a result of heat treatment and long storage of sugar products such as invert sugar and according to codex standards its limit in foods is 40 ppm. Fructose syrup 55% is a transparent liquid with a sweet taste and has no off-flavor and has similar sweetness and functional properties to sucrose. Various studies show that due to the prod...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Geophysical Research: Oceans
سال: 2010
ISSN: 0148-0227,2156-2202
DOI: 10.1029/2009jc005900