运动平板上定常磁流体动力学流动的普朗特层展开的整体在$x$中的稳定性
Global-in-$x$ stability of Prandtl layer expansions for steady magnetohydrodynamics flows over a moving plate
摘要:
本文得到了二维定常不可压MHD流在运动平板上具有剪切外理想MHD流$(1,0,σ,0)$($σ\geq 0$)的Prandtl层展开式的整体-in- $x$ Sobolev稳定性。值得注意的是,在Sobolev意义下,我们的结果允许切向磁场的简并,这与文献[25,26,27]中的非定常情况和文献[3,4]中的定常情况有很大不同。
英文摘要:
In this paper, we obtain the global-in-$x$ Sobolev stability of Prandtl layer expansions for 2-D steady incompressible MHD flows with shear outer ideal MHD flows $(1,0,σ,0)$ ($σ\geq 0$) on a moving plate. It is worth noticing that in the Sobolev sense, the degeneracy of the tangential magnetic field in our result is allowed, which is much different from both the unsteady case in [25,26,27] and the steady case in [3,4].
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