تقرير
Frictional boundary layer effect on vortex condensation in rotating turbulent convection
| العنوان: | Frictional boundary layer effect on vortex condensation in rotating turbulent convection |
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| المؤلفون: | Guzmán, Andrés J. Aguirre, Madonia, Matteo, Cheng, Jonathan S., Ostilla-Mónico, Rodolfo, Clercx, Herman J. H., Kunnen, Rudie P. J. |
| المصدر: | Phys. Rev. Lett. 125, 214501 (2020) |
| سنة النشر: | 2020 |
| المجموعة: | Physics (Other) |
| مصطلحات موضوعية: | Physics - Fluid Dynamics |
| الوصف: | We perform direct numerical simulations of rotating Rayleigh--B\'enard convection of fluids with low ($Pr=0.1$) and high ($Pr=5$) Prandtl numbers in a horizontally periodic layer with no-slip top and bottom boundaries. At both Prandtl numbers, we demonstrate the presence of an upscale transfer of kinetic energy that leads to the development of domain-filling vortical structures. Sufficiently strong buoyant forcing and rotation foster the quasi-two-dimensional turbulent state of the flow, despite the formation of plume-like vertical disturbances promoted by so-called Ekman pumping from the viscous boundary layer. Comment: 12 pages, 4 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevLett.125.214501 |
| URL الوصول: | http://arxiv.org/abs/2001.11889 |
| رقم الأكسشن: | edsarx.2001.11889 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevLett.125.214501 |
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