Nonlinear Processes in Geophysics
Nonlinear Processes in Geophysics
NPG
Articles | Volume 31, issue 3
Articles | Volume 31, issue 3
https://doi.org/10.5194/npg-31-395-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/npg-31-395-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 31, issue 3
Research article
 | 
18 Sep 2024
Research article |  | 18 Sep 2024

On dissipation timescales of the basic second-order moments: the effect on the energy and flux budget (EFB) turbulence closure for stably stratified turbulence

Evgeny Kadantsev, Evgeny Mortikov, Andrey Glazunov, Nathan Kleeorin, and Igor Rogachevskii

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Cited articles

Batchelor, G. K.: The Theory of Homogeneous Turbulence, Cambridge, Cambridge University Press, Cambridge, 1953. 
Bhattacharjee, S., Mortikov, E. V., Debolskiy, A. V., Kadantsev, E., Pandit., R., Vesala, T., and Sahoo, G.: Direct Numerical Simulation of a Turbulent Channel Flow with Forchheimer Drag, Bound.-Lay. Meteorol., 185, 259–276, https://doi.org/10.1007/s10546-022-00731-8, 2022. 
Brown, D. L., Cortez, R., and Minion, M. L.: Accurate projection methods for the incompressible Navier–Stokes equations, J. Comp. Phys., 168, 464–499, 2001. 
Canuto, V. and Minotti, F.: Stratified turbulence in the atmosphere and oceans: A new subgrid model, J. Atmos. Sci., 50, 1925–1935, https://doi.org/10.1175/1520-0469(1993)050<1925:STITAA>2.0.CO;2, 1993. 
Canuto, V., Howard, A., Cheng, Y., and Dubovikov, M.: Ocean turbulence, part I: One-point closure model—Momentum and heat vertical diffusivities, J. Phys. Oceanogr., 31, 1413–1426, https://doi.org/10.1175/1520-0485(2001)031<1413:OTPIOP>2.0.CO;2, 2001. 
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Our study investigates how turbulence behaves in stable conditions using direct numerical simulations. We found that rethinking how energy dissipates in these situations is crucial. By revising existing models, we uncovered limitations in understanding how temperature is transported vertically in very stable conditions. We focus on how turbulence works in extreme stability and offer new insights that could improve our understanding of natural phenomena affected by stable atmospheric conditions.
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