A MATHEMATICAL AND PHYSICAL MODEL FOR THE FLUID FLOW FIELD IN A BATH CAUSED BY AN IMPINGING GAS JET

In this paper, mathematical model is proposed for describing the flow field in liquids or melts agitated by a symmetrically placed impinging gas jet. The problem is formulared by the statement of the axi-symmetrical turbulent Navier-Stokes equations using k-e model for the eddy viscosity. The differential equations are solved numerically using a technique described by Gosman and Spalding et al. and the computed results are shown to be in satisfactory agreement with experimental data both in previous and present investigations.
Due to the improvements made in the model, the predicted results are closer to the than those in the previous study by Li Yuzhang et al. Experimental data, furthermore, the present model may be used to describe the fluid agitated by an impinging gas jet with more extensive range of gas flow rate.
In general, this paper may be considered as a continuation and extension to the work which has been done by the previous investigators.