Study of magnetic damping in liquid metal surface waves
Poster Number
15
Format
Poster Presentation
Abstract/Artist Statement
Knowledge of liquid metal surface waves and instabilities provides insight regarding turbulence in plasmas and the magnetohydrodynamic(MHD) model used to describe plasmas generally. Such work is also critical in the development of liquid lithium walls to be used in fusion reactors. The Liquid Metal Experiment (LMX) is designed to study magnetically induced damping of liquid gallium surface waves by driving such waves in the presence of a magnetic field. Previous work measured the dispersion relation and confirmed that a magnetic field aligned perpendicularly to the direction of wave propagation has no effect. More recent findings have demonstrated that a magnetic field aligned parallel to the direction of wave propagation causes significant damping of the waves which follows a gaussian dependence, and confirmed that the wave number varies in the presence of a magnetic field.
Location
Pacific Geosciences Center
Start Date
20-4-2002 9:00 AM
End Date
20-4-2002 5:00 PM
Study of magnetic damping in liquid metal surface waves
Pacific Geosciences Center
Knowledge of liquid metal surface waves and instabilities provides insight regarding turbulence in plasmas and the magnetohydrodynamic(MHD) model used to describe plasmas generally. Such work is also critical in the development of liquid lithium walls to be used in fusion reactors. The Liquid Metal Experiment (LMX) is designed to study magnetically induced damping of liquid gallium surface waves by driving such waves in the presence of a magnetic field. Previous work measured the dispersion relation and confirmed that a magnetic field aligned perpendicularly to the direction of wave propagation has no effect. More recent findings have demonstrated that a magnetic field aligned parallel to the direction of wave propagation causes significant damping of the waves which follows a gaussian dependence, and confirmed that the wave number varies in the presence of a magnetic field.