Critical values of electrovortex flow parameters in two-layer fluids

V. Kh. Vlasyuk

Vinnitsa State Technical University, Vinnitsa 21021, Ukraine

Abstract
Dependence of some structural features of elelectrovortex flows in two-layer fluids on the radius of a fusible electrode r₀, on the depth of a vessel and on the parameter k_m - the ratio of fluid layers viscosities - was studied by numerical simulation. Critical values of the parameters were found, at which the connectedness change of the areas of one sign and, accordingly, of the vortical structure of flow happens. The critical values k_mc were defined as boundary values of the parameter k_m intervals. Within the k_m intervals the solution of the equations for the flow will not be unique. The dependencies k_mc on r₀ were found. Figs 6, Refs 5.