Numerical Analysis of Free Surface in Water Model for Design of Submerged Entry Nozzle

Two - dimensi onal numerical simulations using finite volume method and an interface capturing scheme are used to predict the shape of free surface wave that is created in a mold due to the flow from submerged entry nozzle. In the present work, instead of steel and argon, water and air enter into the mold. It has been observed that the free surface is wavy in nature. Three different submerged entry nozzle( SEN ) models were taken for numerical analysis. Contributi on of water velocity, different port to Bore ratio (P/B), size of upper recirculation roll on free surface were investigated for designing a submerged entry nozzle. It was observed that Pent - Roof type nozzle is a better one as it shows lesser fluctuation.