Accession Number : ADA197308


Title :   Transient Magnetohydrodynamic Liquid-Metal Flows in a Rectangular Channel with a Moving Conducting Wall


Descriptive Note : Final rept.


Corporate Author : DAVID TAYLOR RESEARCH CENTER BETHESDA MD


Personal Author(s) : Young, Frederick J ; Brown, Samuel H ; Sondergaard, Neal A


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a197308.pdf


Report Date : May 1988


Pagination or Media Count : 27


Abstract : The magnetohydrodynamic equations for temporal transients have been formulated and solved for a liquid metal flowing in a rectangular channel. The rectangular channel was a perfectly conducting moving top wall and a perfectly conducting stationary bottom wall in the presence of an applied external magnetic field aligned perpendicular to the conducting walls. The side walls of the channel are stationary insulators. Calculations show that the temporal transients of the fluid velocity and induced magnetic intensity comprise two exponentially decaying parts. One fast transient is believed to be associated with the propagation of Alven waves and the other a slow transient being the result of viscous and electrical diffusion. Curves of the transients are presented at several stations in the channel.


Descriptors :   *TRANSIENTS , *MAGNETOHYDRODYNAMICS , *FLOW , *DIFFUSION , *FLUIDS , *MAGNETIC FIELDS , RECTANGULAR BODIES , WALLS , CHANNELS , EXTERNAL , VELOCITY , INTENSITY , INSULATION , EQUATIONS , LIQUID METALS , ELECTRICAL PROPERTIES


Subject Categories : Fluid Mechanics
      Plasma Physics and Magnetohydrodynamics


Distribution Statement : APPROVED FOR PUBLIC RELEASE