PHYSICAL PROPERTY MEASUREMENTS FOR THE MATHEMATICAL-MODELING OF FLUID-FLOW IN SOLIDIFICATION PROCESSES

Measurement methods are being developed to provide values for the dens ity, viscosity, heat capacity, enthalpy, fraction solid, surface tensi on, and thermal diffusivity and conductivity of commercial alloys in t he liquid and mushy states. These data are needed for the mathematical modeling of hear and fluid flow in solidification processes. This pap er briefly describes the present state of development of apparatus for the measurement of density by the levitated drop and hydrostatic prob e methods and viscosity by the oscillating viscometer in our laborator y.