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Modeling of convective vortex structures on a slope: from generation and propagation in a stratified medium to interaction with internal waves. Experiment in laboratory tank

https://doi.org/10.59887/2073-6673.2025.18(4)-1

EDN: CYRCYK

Abstract

A solitary gravitational current over an inclined bottom is being investigated in the thermostratified laboratory tank of the SPb IO RAS. In the framework of a laboratory experiment close to real natural conditions, preliminary studies of complex, nonlinear processes of interaction of the bottom density flow, stratification and internal waves were carried out. The full life cycle of the formed vortex structures is considered: from their origin on a slope, development and propagation in a stratified environment, to their interaction with the field of internal waves. During the experiments, empirical data were obtained to verify a non-hydrostatic model with a spatial resolution that allows explicit reproduction of individual convective jets and vortices.

About the Authors

А. А. Rodionov
Shirshov Institute of Oceanology, Russian Academy of Sciences
Russian Federation

Scopus AuthorID: 56223713100, WoS ResearcherID: AAT‑6466-2021 

36 Nakhimovsky Prosp., Moscow 117997 



R. Ye. Vankevich
Shirshov Institute of Oceanology, Russian Academy of Sciences
Russian Federation

Scopus AuthorID: 25642198100, WoS ResearcherID: M‑3215-2013 

36 Nakhimovsky Prosp., Moscow 117997 



А. А. Lobanov
Shirshov Institute of Oceanology, Russian Academy of Sciences
Russian Federation

 

36 Nakhimovsky Prosp., Moscow 117997 



N. N. Shpilev
Shirshov Institute of Oceanology, Russian Academy of Sciences
Russian Federation

 

36 Nakhimovsky Prosp., Moscow 117997 



References

1. Hourdin F, Mauritsen T, Gettelman A, et al. The Art and Science of Climate Model Tuning. Bulletin of the American Meteorological Society. 2017;98(3):589–602. https://doi.org/10.1175/BAMS-D-15-00135.1

2. Large WG, McWilliams JC, Doney SC. Oceanic vertical mixing: A review and a model with a nonlocal boundary layer parameterization. Reviews of Geophysics. 1994;32(4):363–403. https://doi.org/10.1029/94RG01872

3. Price JF, Weller RA, Pinkel R. Diurnal cycling: Observations and models of the upper ocean response to diurnal heating, cooling, and wind mixing. Journal of Geophysical Research. 1986;91(C7):8411–8427. https://doi.org/10.1029/JC091iC07p08411

4. Cenedese C, Marshall J, Whitehead JA. A laboratory model of thermocline depth and exchange fluxes across circumpolar fronts. Journal of Physical Oceanography. 2004;34(3):656–667. https://doi.org/10.1175/2508.1

5. Deardorff JW, Willis GE, Stockton BH. Laboratory studies of the entrainment zone of a convectively mixed layer. Journal of Fluid Mechanics. 1980;100(1):41–64. https://doi.org/10.1017/S0022112080001000

6. Harcourt RR. An improved second-moment closure model of Langmuir turbulence. Journal of Physical Oceanography. 2015;45(1):84–103. https://doi.org/10.1175/JPO-D-14-0046.1

7. Li Q, Fox-Kemper B. Assessing the effects of Langmuir turbulence on the entrainment buoyancy flux in the ocean surface boundary layer. Journal of Physical Oceanography. 2017;47(12):2863–2886. https://doi.org/10.1175/JPO-D-17-0085.1

8. Reichl BG, Wang D, Hara T, Ginis I, Kukulka T. Langmuir turbulence parameterization in tropical cyclone conditions. Journal of Physical Oceanography. 2016;46(3):863–886. https://doi.org/10.1175/JPO-D-15-0106.1

9. Wang D, Large WG, McWilliams JC. Large-eddy simulation of the equatorial ocean boundary layer: Diurnal cycling, eddy viscosity, and horizontal rotation. Journal of Geophysical Research: Oceans. 1996;101(C2):3649–3662. https://doi.org/10.1029/95JC03441

10. Souza AN, Wagner GL, Ramadhan A., et al. Uncertainty quantification of ocean parameterizations: Application to the K-Profile-Parameterization for penetrative convection. Journal of Advances in Modeling Earth Systems. 2020;12(12): e2020MS002108. https://doi.org/10.1029/2020MS002108

11. Besard T, Foket C, De Sutter B. Effective extensible programming: Unleashing Julia on GPUs. IEEE Transactions on Parallel and Distributed Systems. 2019;30(4):827–841. https://doi.org/10.1109/TPDS.2018.2872064

12. Sullivan PP, Patton EG. The effect of mesh resolution on convective boundary layer statistics and structures generated by large-eddy simulation. Journal of the Atmospheric Sciences. 2011;68(10):2395–2415. https://doi.org/10.1175/JAS-D-10-05010.1

13. Verstappen R. How much eddy dissipation is needed to counterbalance the nonlinear production of small, unresolved scales in a large-eddy simulation of turbulence? Computers & Fluids. 2018;176:276–284. https://doi.org/10.1016/j.compfluid.2016.12.016

14. Chubarenko IP. Horizontal convection over submarine slopes. Kaliningrad: Terra Baltika, 2010. 256 p.

15. Zatsepin AG, Gritsenko VA, Kremenetskii VV, Poyarkov SG, Stroganov OYu. Laboratory and numerical study of gravity currents over a sloping bottom. Oceanology. 2005;45(1):1–10.

16. Zatsepin AG, Kostyanoy AG, Semenov AV. Laboratory study of axisymmetric density flow on an inclined bottom in a rotating fluid. Oceanology. 1996;36(3): 339–346. (In Russ).

17. Gritsenko VA., Yurova AA. On the propagation of the bottom gravity current front over a steep slope. Oceanology. 1997;37(1):40–45.

18. Gritsenko VA, Yurova AA. On the main phases of the separation of the bottom gravity current from the bottom slope. Oceanology. 1999;39(2):187–191. (In Russ).

19. Frank WM, Molinari J. Convective Adjustment. In: Emanuel, K.A., Raymond, D.J. (eds) The Representation of Cumulus Convection in Numerical Models. Meteorological Monographs. American Meteorological Society, Boston, MA. 1993. https://doi.org/10.1007/978-1-935704-13-3_8

20. Vladimirtsev Yu A., Kosarev AN. Some features of convective mixing in the Black and Caspian Seas. Oceanology. 1963;3(6):979–985. (In Russ).

21. Vladimirtsev YuA, Shipilov VM. Convective mixing in different natural conditions: The Black and Azov Seas. In the book: Convective Mixing in the Sea. M.: Moscow University Press, 1977. 236 p. (In Russ).

22. Titov VB. Formation zones and water volume of the cold intermediate layer in the Black Sea in relation to winter severity. Meteorology and Hydrology. 2006;6:62–68. (In Russ).

23. Andrie C, Merlivat L. Tritium in the western Mediterranean Sea during1981 Phycemed cruise. Deep-Sea Research. 1988;35(2):247–267. https://doi.org/10.1016/0198-0149(88)90039-8

24. Rodionov АА, Vankevich RYe, Lobanov АА, Glitko ОV, Shpilev NN. Thermally stratified water tank of St. Petersburg Branch of Shirshov Institute of Oceanology of Russian Academy of Sciences for modeling hydrophysical processes. Fundamental and Applied Hydrophysics. 2024;17(4):90–99. https://doi.org/10.59887/2073-6673.2024.17(4)-7 (In Russ).


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For citations:


Rodionov А.А., Vankevich R.Ye., Lobanov А.А., Shpilev N.N. Modeling of convective vortex structures on a slope: from generation and propagation in a stratified medium to interaction with internal waves. Experiment in laboratory tank. Fundamental and Applied Hydrophysics. 2025;18(4):8-19. (In Russ.) https://doi.org/10.59887/2073-6673.2025.18(4)-1. EDN: CYRCYK

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ISSN 2073-6673 (Print)
ISSN 2782-5221 (Online)