ENGLISH

Turbulent mixing in experimental

By Sanford Lawrence P.

Book information

Language
english
Format
PDF
Filesize
3 MB (3150659 bytes)
Pages
\29
Topic
Chemistry Chemical
Library
twirpx
Time added
2017-08-07 07:01:42
Химия и химическая промышленность;Процессы и аппар

Description

Mar Ecol Prog Ser 161: 265-293, 1997.Turbulent mixing is an integral aspect of aquatic ecosystems Turbulence affects ecosystemfeatures ranglng from phytoplankton blooms at large scales through microscale interactions inthe plankton. Enclosed experimental ecosystems, if they are to mimic the function of natural ecosystems, also must mimic natural turbulence and its effects. Large-scale velocity gradients and unstable buoyancy fluxes generate turbulent mixing in nature, most often at the surface and bottom boundaries and in the pycnocline. Large eddy sizes are controlled by the mixed layer depth, boundary layer thickness, or overturning length in the pycnocl~neT. urbulent energy cascades through smaller and smaller eddy scales until it can be dissipated by molecular viscosity at the smallest scales. In contrast, artificial apparatuses frequently are used to generate turbulent m~x i n gin the interior of experimental ecosystem enclosures.

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