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江松院士——Magnetic inhibition on the Rayleigh-Taylor instability in non-resistive magnetohydrodynamics
发布人:许全华  发布时间:2021-05-28   浏览次数:373

题目:Magnetic inhibition on the Rayleigh-Taylor instability in non-resistive magnetohydrodynamics


报告人:江松院士(中国科学院


时间:62日,16:00-17:00


地点:腾讯会议,会议号:783 235 963


摘要:The Rayleigh-Taylor (RT) instability is well known as gravity-driven instability in fluids when a heavy fluid is on top of a light one, and appears in a wide range of applications in science and technology, such as in inertia confinement fusion, Tokamak, supernova explosions. In this talk, mathematical analysis of the magnetic RT instability in incompressible/compressible fluids will be presented, in particular, effects of an (impressed) magnetic field upon the growth of the RT instability will be discussed and analyzed quantitatively. We shall show that a sufficiently strong (impressed) magnetic field can inhibit the RT instability; otherwise, instability will still occur in the sense that solutions do not continuously depend on initial data.


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