Dynamics and structure of a stratified flow around a horizontal plate

TitleDynamics and structure of a stratified flow around a horizontal plate
Publication TypeJournal Article
Year of Publication2014
AuthorsZagumennyi, Ia.V
Abbreviated Key TitleDopov. Nac. akad. nauk Ukr.
Date Published7/2014

Computations of the two-dimensional problem of a continuously stratified incompressible fluid flow around an impermeable obstacle are carried out by the finite volume method based on the package OpenFOAM and the own programs, by using high-performance cluster systems. The structure and the dynamics of the stratified flow around a horizontal plate are studied in a wide range of Froude and Reynolds numbers. The stratification effects have a significant influence on the dynamic characteristics of the flow and may even lead to a change in the sign of the integral lift force acting on plate's surface. In the extreme case of large Froude numbers, when the transition to the homogeneous fluid approximation occurs, the flow characteristics converge to a solution, in which a number of fine-structure components lose their individual properties and become indistinguishable.

Keywordsdynamics, flow, horizontal plate, structure

1. Shlikhting G. Boundary layer theory. Moscow: Nauka, 1969 (in Russian).
2. Grek G. P., Kozlov V. V., Chernorai V. G. Usp. mekhaniki,  2006, No. 1: 52–89 (in Russian).
3. Chashechkin Yu. D., Zagumennyi Ya. V. Phys. Scripta. 2013, T155: 014010. https://doi.org/10.1088/0031-8949/2013/T155/014010
4. Ligthill J.  Waves in liquids. Moscow: Mir, 1981 (in Russian).
5. Vedenkov V. E., Sirnov G. V., Borisov T. N. Dynamics of surface and interior ship waves. Vladivostok: Dalnauka, 1999 (in Russian).
6. Scase M. M., Dalziel S. B. J. Fluid Mech. 2006, 564: 305–331. https://doi.org/10.1017/S0022112006001571
7. Chashechkin Yu. D., Bardakov R. N., Zagumenny Ya. V. Morskoi gidrofiz. zhurn., 2010, No. 6: 3–15 (in Russian).
8. Chashechkin Yu. D. Morskoi gidrofiz. zhurn., 2010, No. 5: 3–10 (in Russian).
9. Chashechkin Yu. D., Mitkin V. V. J. Visualiz., 2004, 7, No. 2: 127–134. https://doi.org/10.1007/BF03181585
10. Zagumennyi Ya. V., Chashechkin Yu. D. Izvestia RAN: Mekhanika Zhidkosti i Gaza, 2013, No. 3: 100–117 (in Russian).
11. Chashechkin Yu. D., Zagumennyi Ya. V. Tr. ISP RAN, 2013, 24: 87–106 (in Russian).