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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Global strong solutions to the two-dimensional radially symmetric compressible MHD
二维径向对称 可压缩 磁流体动力学 全局强解
2023/12/11
In this talk, I will present our recent result the 2D radially symmetric compressible MHD with density-dependent viscosity. Under the condition of beta>1, we prove the global existence of the radially...
反常热输运是核聚变研究的核心问题之一，微湍流被普遍认为是导致反常热输运的主要因素。微湍流可以被常共存于等离子体中的MHD不稳定性所调制（平衡调制或非线性耦合），进而影响等离子体反常热输运水平。中高波数微湍流被MHD不稳定性调制的成果鲜有实验报道，鉴定及进一步的理解这种非线性相互作用不仅有助于预测以及改善将来聚变装置如ITER、CFETR等离子体的约束行为，也有利于其的安全运行及理论模型的完善。近日...
基于全球三维磁层MHD（Magnetohydrodynamics）模拟模型， 研究了行星际磁场（Interplanetary Magnetic Field， IMF）北向与南向时磁尾横断面（X=?18 RE）的结构及等离子片的粒子注入机制. 模拟结果很好地符合一些已知的观测数据和经验模型. 从向阳面磁层顶IMF及重联后磁力线尾向运动过程的角度， 对磁尾横断面粒子热压力分布、磁力线投影、等离子片或电...
On wave turbulence in MHD
wave turbulence MHD
2009/11/12
We describe the fundamental differences between weak (wave) turbulence in incompressible and weakly compressible MHD at the level of three-wave interactions. The main difference is in the structure of...
Simplified Forms of Generalized MHD Equations in a Cylindrical Plasma
MHD theory cylindrical plasma Alfvén wave
2007/8/15
2001Vol.35No.2pp.219-222DOI:
Simplified Forms of Generalized MHD Equations in a Cylindrical Plasma
YANG Wei-Hong
Department of Modern Physics, University of Science and
...
On the MHD Boundary of Kelvin-Helmholtz Stability Diagram at Large Wavelengths
the MHD Boundary Kelvin-Helmholtz Stability Diagram Large Wavelengths
2010/10/27
Working within the domain of inviscid incompressible MHD theory, we found that a tangential discontinuity (TD) separating two uniform regions of different density, velocity and magnetic field may be K...