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- Wolfgang Dobler, Peter Frick, Rodion Stepanov
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2003

The kinematic dynamo problem is investigated for the flow of a conducting fluid in a cylindrical, periodic tube with conducting walls. The methods used are an eigenvalue analysis of the steadyâ€¦ (More)

- Anvar Shukurov, Rodion Stepanov, Dmitry D. Sokoloff
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2008

We demonstrate that flows of conducting fluid along a MÃ¶bius strip and related surfaces are hydromagnetic dynamos, i.e., they can produce an exponentially growing magnetic field from an infinitesimalâ€¦ (More)

Context. Magnetic fields in nearby, star-forming galaxies reveal large-scale patterns, as predicted by dynamo models, but also a variety of small-scale structures. In particular, a large-scale fieldâ€¦ (More)

- Karl-Heinz RÃ¤dler, Rodion Stepanov
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2006

The mean electromotive force caused by turbulence of an electrically conducting fluid, which plays a central part in mean-field electrodynamics, is calculated for a rotating fluid. Going beyond mostâ€¦ (More)

We investigate the dynamo problem in the limit of small magnetic Prandtl number (Pm) using a shell model of magnetohydrodynamic turbulence. The model is designed to satisfy conservation laws of totalâ€¦ (More)

Context. The forthcoming new-generation radio telescope SKA (Square Kilometre Array) and its precursors will provide a rapidly growing number of polarized radio sources. Aims. Our analysis looks atâ€¦ (More)

- Rodion Stepanov, Robert J. Volk, S. Denisov, Peter Frick, V. Y. Noskov, J. - F. Pinton
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2006

We investigate experimentally induction mechanisms in a screw flow of gallium in a toroidal channel. The flow is nonstationary and operated in a spin-down regime: the channel (and fluid) areâ€¦ (More)

- Rodion Stepanov, Ephim Golbraikh, Peter Frick, Alexander V. Shestakov
- Physical review letters
- 2015

The conventional approach to the turbulent energy cascade, based on Richardson-Kolmogorov phenomenology, ignores the topology of emerging vortices, which is related to the helicity of the turbulentâ€¦ (More)

- Rodion Stepanov, Franck Plunian, Mouloud Kessar, Guillaume Balarac
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2014

The energy spectral density E(k), where k is the spatial wave number, is a well-known diagnostic of homogeneous turbulence and magnetohydrodynamic turbulence. However, in most of the curves plottedâ€¦ (More)