Zobrazeno 1 - 10
of 536
pro vyhledávání: '"I. Kopp"'
Autor:
Michael I. Kopp, Volodymyr V. Yanovsky
Publikováno v:
East European Journal of Physics, Iss 1, Pp 175-191 (2024)
In this paper, the influence of gravitational modulation on weakly nonlinear biothermal convection in a porous rotating layer is investigated. We consider a layer of porous medium saturated with Newtonian fluid, containing gyrotactic microorganisms,
Externí odkaz:
https://doaj.org/article/c4ce2a430f59454d8aaaf1fc5a896ffa
Autor:
Michael I. Kopp, Volodymyr V. Yanovsky
Publikováno v:
East European Journal of Physics, Iss 3, Pp 207-222 (2023)
This paper investigates the impact of gravity modulation on weakly nonlinear magnetoconvection in a nanofluid layer that is nonuniformly rotating. The fundamental equations are obtained for the Cartesian approximation of the Couette flow using the Bo
Externí odkaz:
https://doaj.org/article/848fa3285ab0484fbcf4040aa7dce629
Publikováno v:
Journal of Applied and Computational Mechanics, Vol 9, Iss 2, Pp 487-497 (2023)
The current paper examines the impact of radiation and Marangoni convective boundary conditions on the flow of ternary hybrid nanofluids in a porous medium with mass transpiration effect on it. Estimated PDEs are converted to ODEs with consideration
Externí odkaz:
https://doaj.org/article/97fc7c283dec46e7995181650649beb9
Publikováno v:
East European Journal of Physics, Iss 1, Pp 7-18 (2023)
In this paper, the magnetohydrodynamic (MHD) flow of a ternary hybrid ferrofluid over a stretching/shrinking porous sheet in the presence of radiation and mass transpiration is studied. The ternary hybrid nanofluid is formed by suspending three types
Externí odkaz:
https://doaj.org/article/f20adbede4ab42a385b8b159fea2c740
Publikováno v:
East European Journal of Physics, Iss 4, Pp 23-47 (2022)
The study of thermal convection in porous media saturated by nanofluid and microorganisms is an important problem for many geophysical and engineering applications. The concept of a mixture of nanofluids and microorganisms has attracted the interest
Externí odkaz:
https://doaj.org/article/5f4c091216b348899f6556fe51896e4c
Autor:
Michael I. Kopp, Volodymyr V. Yanovsky
Publikováno v:
East European Journal of Physics, Iss 2 (2023)
The review highlights the main achievements in the theory of the vortex dynamo in rotating media. Various models of a vortex dynamo in rotating media are discussed: a homogeneous viscous fluid, a temperature-stratified fluid, a moist atmosphere, and
Externí odkaz:
https://doaj.org/article/bdee28c4f3794cba99884e4df35f771c
Publikováno v:
East European Journal of Physics, Iss 2, Pp 5-37 (2020)
In this paper we studied the weakly nonlinear stage of stationary convective instability in a nonuniformly rotating layer of an electrically conductive fluid in an axial uniform magnetic field under the influence of: a) temperature modulation of the
Externí odkaz:
https://doaj.org/article/b726cb4382194314aae98c0a7708c5c6
Publikováno v:
East European Journal of Physics, Iss 1, Pp 5-36 (2020)
In this paper, we investigated a new large-scale instability that arises in an obliquely rotating convective electrically conducting fluid in an external uniform magnetic field with a small-scale external force with zero helicity. This force excites
Externí odkaz:
https://doaj.org/article/e3db44fe2ea840f48d312ef44156ae9b
Publikováno v:
East European Journal of Physics, Vol 4, Iss 1, Pp 4-27 (2017)
We found a new large-scale instability, which arises in the rotating conductive fluid with small-scale turbulence. Turbulence is generated by small-scale external force with a low Reynolds number. The theory is built simply by the method of multiscal
Externí odkaz:
https://doaj.org/article/d7b68afca60943fcb561467887b83ac8
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