82 citations · 627 across the 32 of their papers we have counts for
5 papers · 1 filter
Dynamo generated by the centrifugal instability
Florence Marcotte, Christophe Gissinger
We present a new scenario for magnetic field amplification where an electrically conducting fluid is confined in a differentially rotating, spherical shell with thin aspect-ratio.…
Fluctuations of electrical conductivity: a new source for astrophysical magnetic fields
Francois Petrelis, Alexandros Alexakis, Christophe Gissinger
We consider the generation of magnetic field by the flow of a fluid for which the electrical conductivity is nonuniform. A new amplification mechanism is found which leads to dynam…
Instability in electromagnetically driven flows Part II
Paola Rodriguez Imazio, Christophe Gissinger
In a previous paper, we have reported numerical simulations of the MHD flow driven by a travelling magnetic field (TMF) in an annular channel, at low Reynolds number. It was shown…
Instability in electromagnetically driven flows Part I
Christophe Gissinger, Paola Rodriguez-Imazio, Stephan Fauve
The MHD flow driven by a travelling magnetic field (TMF) in an annular channel is investigated numerically. For sufficiently large magnetic Reynolds number Rm, or if a large enough…
Wave-induced motion of magnetic spheres
Christophe Gissinger
We report an experimental study of the motion of magnetized beads driven by a travelling wave magnetic field. For sufficiently large wave speed, we report the existence of a backwa…