Quasi-2D MHD turbulent shear layers

Quasi-2D MHD turbulent shear layers

An experiment has been carried out to investigate the properties of 2D turbulence in a mercury layer in the presence of a steady magnetic field. Visualizations of the vortices were possible via the observation of the image of a regular grid mesh reflected on the free surface. In parallel, quantitati...

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Veröffentlicht in:Experimental thermal and fluid science 1999-09, Vol.20 (1), p.19-24
Hauptverfasser: Alboussière, T, Uspenski, V, Moreau, R
Format: Artikel
Sprache:eng
Schlagworte:
Flow visualization
Heat transfer
Magnetohydrodynamics
MHD turbulence
Quasi-2D MHD
Shear flow
Shear layers
Steady flow
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Zusammenfassung:An experiment has been carried out to investigate the properties of 2D turbulence in a mercury layer in the presence of a steady magnetic field. Visualizations of the vortices were possible via the observation of the image of a regular grid mesh reflected on the free surface. In parallel, quantitative measurements of the velocity were recorded with the use of potential probes located at the bottom of the fluid layer. The basic flow consists in a shear flow. The mean part of the turbulent flow and the spectrum of its fluctuations are characterized. The global influence of turbulence on both momentum and heat transfers is examined.
ISSN:0894-1777
1879-2286
DOI:10.1016/S0894-1777(99)00023-0