scholarly journals Magnetorotational instability in electrically driven flow of liquid metal: Spectral analysis of global modes

2006 ◽  
Vol 18 (12) ◽  
pp. 124107 ◽  
Author(s):  
I. V. Khalzov ◽  
V. I. Ilgisonis ◽  
A. I. Smolyakov ◽  
E. P. Velikhov
Keyword(s):  
Spectral Analysis ◽  
Liquid Metal ◽  
Magnetorotational Instability ◽  
Global Modes

Liquid metal experiments on the magnetorotational instability

2009 ◽  
Vol 45 (2) ◽  
pp. 135-144 ◽  
Author(s):  
F. Stefani ◽  
G. Gerbeth ◽  
Th. Gundrum ◽  
J. Szklarski ◽  
G. Rüdiger ◽  
...  
Keyword(s):  
Liquid Metal ◽  
Magnetorotational Instability

The DRESDYN project: liquid metal experiments on dynamo action and magnetorotational instability

2018 ◽  
Vol 113 (1-2) ◽  
pp. 51-70 ◽  
Author(s):  
F. Stefani ◽  
A. Gailitis ◽  
G. Gerbeth ◽  
A. Giesecke ◽  
Th. Gundrum ◽  
...  
Keyword(s):  
Liquid Metal ◽  
Magnetorotational Instability ◽  
Dynamo Action

Vorticity organization in the outer layer of turbulent channels with disturbed walls

2007 ◽  
Vol 591 ◽  
pp. 145-154 ◽  
Author(s):  
OSCAR FLORES ◽  
JAVIER JIMÉNEZ ◽  
JUAN C. DEL ÁLAMO
Keyword(s):  
Spectral Analysis ◽  
Numerical Experiments ◽  
Outer Region ◽  
Reynolds Numbers ◽  
Streamwise Velocity ◽  
The Self ◽  
Average Flow ◽  
Global Modes ◽  
Self Similar ◽  
Using Data

The vortex clusters in the turbulent outer region of rough- and smooth-walled channels, and their associated velocity structures, are compared using data from numerical experiments at friction Reynolds numbers Reτ ≤ 674. The results indicate that the roughness of the wall does not affect their properties, particularly the existence of wall-detached and wall-attached populations, and the self-similar size distribution of the latter. The average flow field conditioned to the attached clusters reveals similar conical structures of low streamwise velocity for the rough- and smooth-walled cases, which eventually grow into the global modes previously identified from spectral analysis. We conclude that the vortex clusters of the turbulent outer region either originate away from the wall, or quickly forget their origin, in agreement with Townsend's similarity hypothesis.

scholarly journals Magnetorotational Instability in Liquid Metal Couette Flow

2002 ◽  
Vol 575 (2) ◽  
pp. 1151-1162 ◽  
Author(s):  
K. Noguchi ◽  
V. I. Pariev ◽  
S. A. Colgate ◽  
H. F. Beckley ◽  
J. Nordhaus
Keyword(s):  
Liquid Metal ◽  
Couette Flow ◽  
Magnetorotational Instability

scholarly journals Magnetorotational Instability in a Rotating Liquid Metal Annulus

2001 ◽  
Author(s):  
Hantao Ji ◽  
Jeremy Goodman ◽  
Akira Kageyama
Keyword(s):  
Liquid Metal ◽  
Magnetorotational Instability ◽  
Rotating Liquid

Equilibrium magnetohydrodynamic flows of liquid metals in magnetorotational instability experiments

2010 ◽  
Vol 644 ◽  
pp. 257-280 ◽  
Author(s):  
I. V. KHALZOV ◽  
A. I. SMOLYAKOV ◽  
V. I. ILGISONIS
Keyword(s):  
Liquid Metal ◽  
Theoretical Analysis ◽  
Liquid Metals ◽  
Annular Channel ◽  
Reynolds Numbers ◽  
Unified Approach ◽  
Magnetorotational Instability ◽  
Annular Channels ◽  
Magnetohydrodynamic Flows ◽  
Different Types

A theoretical analysis of equilibrium magnetohydrodynamic flows in annular channels is performed from the perspective of establishing required conditions for liquid metal magnetorotational instability (MRI) experiments. Two different types of fluid rotation are considered: electrically driven flow in an annular channel and Taylor–Couette flow between rotating cylinders. The structure of these flows is studied within a unified approach as a function of the Hartmann and Reynolds numbers. The parameters appropriate for realization of MRI experiments are determined.

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