On the Stabilizing Effect of the Magnetic Fields in the Magnetic Rayleigh-Taylor Problem
On the Stabilizing Effect of the Magnetic Fields in the Magnetic Rayleigh-Taylor Problem
复制标题
磁瑞利-泰勒问题中磁场的稳定作用
DOI:
10.1137/16m1069584
复制
发表时间:
2018-01
影响因子:
2
通讯作者:
Jiang Song
中科院分区:
文献类型:
--
作者:
Jiang Fei;Jiang Song
We investigate the stabilizing effect of the vertical equilibrium magnetic field in the Rayleigh--Taylor (RT) problem for a nonhomogeneous incompressible viscous magnetohydrodynamic (MHD) fluid of zero resistivity in the presence of a uniform gravitational field in a horizontally periodic domain, in which the velocity of the fluid is nonslip on both upper and lower flat boundaries. When an initial perturbation around a magnetic RT equilibrium state satisfies some relations, and the strength $|m|$ of the vertical magnetic field of the equilibrium state is bigger than the critical number $m_C$, we can use the Bogovskii function in the standing-wave form and adapt a two-tier energy method in Lagrangian coordinates to show the existence of a unique global-in-time (perturbed) stability solution to the magnetic RT problem. For the case of $|m|<m_C$, we show that the nonlinear RT instability still occurs by developing a new analysis technique based on the method of bootstrap instability. The current result revea...
登录
查看更多内容
影响因子:
3
作者:
Yan Guo;W. Strauss
通讯作者:
Yan Guo;W. Strauss
影响因子:
1.9
作者:
Jiang Fei;Jiang Song;Wang Yanjin
通讯作者:
Wang Yanjin
DOI:
10.2140/apde.2013.6.1429
发表时间:
2010-11
期刊:
arXiv: Analysis of PDEs
影响因子:
--
作者:
Yan Guo;Ian Tice
通讯作者:
Yan Guo;Ian Tice
DOI:
10.1512/iumj.2010.59.4145
发表时间:
2009-08
期刊:
arXiv: Analysis of PDEs
影响因子:
--
作者:
Jan Pruess;G. Simonett
通讯作者:
Jan Pruess;G. Simonett
DOI:
10.1007/978-3-0346-0537-3
发表时间:
2011-12
期刊:
--
影响因子:
--
作者:
V. Volpert
通讯作者:
V. Volpert