Free MHD Shear Layers In The Presence Of Rotation And Magnetic Field

Spence, E. J. ; Roach, A. H. ; Edlund, E. M. ; Sloboda, P. ; Ji, H.

关键词: HYDRODYNAMICS;    INSTABILITY;    MAGNETIC FIELDS;    MAGNETOHYDRODYNAMICS;    MODIFICATIONS;    ROTATION;    SHEAR;    STABILITY Numerical Simulation;    Shea;   

DOI  :  10.2172/1037452
RP-ID  :  PPPL-4747
PID  :  OSTI ID: 1037452
Others  :  TRN: US1202101

学科分类：原子、分子光学和等离子物理

美国|英语

来源: SciTech Connect

【 摘 要 】

We present an experimental and numerical study of hydrodynamic and magnetohydrodynamic free shear layers and their stability. We first examine the experimental measurement of globally unstable hydrodynamic shear layers in the presence of rotation, and their range of instability. These are compared to numerical simulations, which are used to explain the modification of the shear layer and thus the critical Rossby number for stability. Magnetic fields are then applied to these scenarios, and globally unstable magnetohydrodynamic shear layers generated. These too are compared to numerical simulations, showing behavior consistent with the hydrodynamic case and previously reported measurements.