Generalized Beltrami field modeling disk-jet system

被引：8
|
作者：
Shatashvili, N. L. [1 ,2 ]
Yoshida, Z. [3 ]
机构：
[1] Javakhishvili Tbilisi State Univ, Fac Exact & Nat Sci, GE-0128 Tbilisi, Georgia
[2] Javakhishvili Tbilisi State Univ, Andronikashvili Inst Phys, Tbilisi, Georgia
[3] Univ Tokyo, Grad Sch Frontier Sci, Tokyo 2778561, Japan
来源：
IFP-CNR-CHALMERS WORKSHOP ON NONLINEAR PHENOMENA IN FUSION PLASMAS | 2011年 / 1392卷
关键词：
Beltrami field; galaxies; jet; accretion disk; 3-DIMENSIONAL MAGNETOHYDRODYNAMIC SIMULATIONS; MAGNETICALLY-DRIVEN JETS; ACCRETION DISKS; FORCE-FREE; SOLAR ATMOSPHERE; MHD SIMULATIONS; COLLAPSING STAR; ACCELERATION; PLASMA; ENERGY;
D O I：
10.1063/1.3647233
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
A generalized Beltrami field, including the effect of inhomogeneous density, can model the singular structure of thin-disk and collimated-jet combination. On an accretion disk, the singularity at the origin (r = 0) of the Keplerian rotation (V-theta proportional to r(-1/2)) is the determinant of the geometry and mechanics of accompanying jet: the collimation of the jet is the consequence of the alignment -so-called Beltrami condition-of the flow velocity and the "generalized vorticity" that appears as an axle penetrating the disk (the vorticity is generalized to combine with magnetic field as well as to subtract the friction force causing the accretion). We construct an analytical solution of the simplified version of the model by the method of similarity solution.
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收藏
页数：10
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