Mathematical analysis of a super-rotating shear layer in MHD
- 👤 Speaker: Anne-Laure Dalibard (Sorbonne Université)
- 📅 Date & Time: Friday 20 May 2022, 11:15 - 12:15
- 📍 Venue: Seminar Room 1, Newton Institute
Abstract
In this talk, we will consider the motion of a viscous incompressible and electrically conducting fluid between two rotating spheres and with an imposed exterior magnetic field. The inner sphere is a conductor, while the outer sphere is an insulator. Previous works by Hollerbach, Starchenko, and by Dormy et al. indicated that a shear layer is formed along the magnetic field line tangent to the outer boundary at the equatorial plane. Our purpose here is to provide a quantitative mathematical analysis for this phenomenon. This is a joint work with Jean Rax, following discussions with Emmanuel Dormy.
Series This talk is part of the Isaac Newton Institute Seminar Series series.
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Anne-Laure Dalibard (Sorbonne Université)
Friday 20 May 2022, 11:15-12:15