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SUMMARY:Mathematical analysis of a super-rotating shear layer in MHD - Ann
 e-Laure Dalibard (Sorbonne Université)
DTSTART:20220520T101500Z
DTEND:20220520T111500Z
UID:TALK173549@talks.cam.ac.uk
DESCRIPTION:In this talk\, we will consider the motion of a viscous incomp
 ressible and electrically conducting fluid between two rotating spheres an
 d with an imposed exterior magnetic field. The inner sphere is a conductor
 \, while the outer sphere is an insulator.\nPrevious works by Hollerbach\,
  Starchenko\, and by Dormy et al. indicated that a shear layer is formed a
 long the magnetic field line tangent to the outer boundary at the equatori
 al plane. Our purpose here is to provide a quantitative mathematical analy
 sis for this phenomenon.\nThis is a joint work with Jean Rax\, following d
 iscussions with Emmanuel Dormy.
LOCATION:Seminar Room 1\, Newton Institute
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