Numerical Modelling of Free Surface Dynamics of Melt in Alternate Electromagnetic Field

摘要

On account of ANSYS Classic and ANSYS/CFX external coupling a numerical model for free surface dynamics of conductive fluid in an alternate EM field is developed.The model is adjusted for the case of EM levitation and extended on 3D with LES turbulence description.Results for the steady state free surface calculations are compared to other models and experimental measurements in induction furnaces and EM levitation melting device.Calculation results of free surface dynamics are compared to analytical estimation of small amplitude free surface oscillation periods.3D k-ωSST free surface dynamics calculation in ICF indicates on regular low-frequency instability of flow and meniscus,meanwhile,3D LES calculation is initiated and influence of turbulence model on meniscus is discussed.