arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2009.06150math.AP
收藏

二维完全可压缩无阻MHD系统的整体时间弱解

On global-in-time weak solutions to a 2D full compressible non-resistive MHD system

Yang Li, Yongzhong Sun

摘要:

本文考虑了一个考虑绝对温度涨落的二维无阻磁流体动力学模型。结合Lions [20]、Feireisl等[7,8]从可压缩Navier-Stokes(- Fourier)方程组出发提出的弱收敛方法和Vasseur等[26]提出并由Novotny等[22]从可压缩双流体模型出发改进的变量缩减新技术,证明了在有限能量初始数据下,弱解在时间上全局存在.这是第一个在大初值条件下,对完全可压缩、粘性、无阻的多维磁流体动力学方程组的整体可解性进行研究的结果。

英文摘要:

In this paper, we consider a two-dimensional non-resistive magnetohydrodynamic model, taking the fluctuation of absolute temperature into account. Combining the method of weak convergence developed by Lions [20], Feireisl et al. [7, 8] from compressible Navier-Stokes(- Fourier) system and the new technique of variable reduction proposed by Vasseur et al. [26] and refined by Novotny et al. [22] from compressible two-fluid models, weak solutions are shown to exist globally in time with finite energy initial data. The result is the first one on global solvability to full compressible, viscous, non-resistive magnetohydrodynamic system in multi-dimensions with large initial data.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑