Articles | Volume 17, issue 11
https://doi.org/10.5194/acp-17-6531-2017
https://doi.org/10.5194/acp-17-6531-2017
Research article
 | 
02 Jun 2017
Research article |  | 02 Jun 2017

A new downscaling method for sub-grid turbulence modeling

Lucie Rottner, Christophe Baehr, Fleur Couvreux, Guylaine Canut, and Thomas Rieutord

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Short summary
In this study we explore a new way to model sub-grid turbulence using particle systems. The ability of particle systems to model small-scale turbulence is evaluated using high-resolution numerical simulations performed with the atmospheric model Meso-NH. The study shows that the particle system is able to reproduce much finer turbulent structures than the high-resolution simulations. It also provides an estimate of the effective spatial and temporal resolution of the numerical models.
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