Accession Number : AD0678626

Title :   VISCOUS MAGNETOHYDRODYNAMIC FLOWS,

Corporate Author : STANFORD UNIV CALIF INST FOR PLASMA RESEARCH

Personal Author(s) : Sonju,O. K.

Report Date : JUL 1968

Pagination or Media Count : 157

Abstract : The effects in both fully developed, two-dimensional flows and boundary-layer flows of an applied transverse magnetic field and an applied parallel electric field (i.e., normal to both the flow and the magnetic field) on the dynamic behavior of electrically conducting fluids are investigated. The flow over electrically insulated walls are considered. The importance of fluid-property, in particular electrical conductivity, variations in the plasma is studied. Both laminar and turbulent flows are discussed, and experimental as well as theoretical work was performed. The influence of the electrical-conductivity profile within the plasma is studied by systematically varying the wall temperature with respect to the mean plasma temperature. The effect of the magnetic field is found to be sensitive to this temperature difference. Furthermore, turbulence-damping effects, Hall-parameter effects and fluid-property-variation effects are discussed. A complete correlation of the data is proposed. Significant changes due to the magnetic field are observed. The calculated boundary-layer thickness and wall friction approach asymptotic values at large distances downstream of the leading edge. The boundary-layer thickness decreases with increasing magnetic interaction. The effect of a varying electrical conductivity in the boundary layer is also estimated. (Author)

Descriptors :   (*MAGNETOHYDRODYNAMICS, VISCOSITY), TWO DIMENSIONAL FLOW, BOUNDARY LAYER, MAGNETIC FIELDS, ELECTRIC FIELDS, WALLS, TEMPERATURE, SKIN FRICTION, LEADING EDGES

Subject Categories : Plasma Physics and Magnetohydrodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE