발간논문

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Vol.24, No.4, 511 ~ 522, 1986
Title
A Numerical Prediction of Fluid Flow in Gas - Stirred Vessel
박병관B . K . Park, 최성조S . J . Choi, 윤종규J . K . Yoon
Abstract
A mathematical model of a fluid flow in a bottom blown gas-stirred vessel which is widely used in refining process of steel has been developed with the use of Homogeneous Flow Theory corrected by Drift Flux Model. Time-averaged continuity equation, Navier-Stokes equation and K-εturbulence model are applied to the two-dimensional axisymmetric turbulent recirculating flow in a cylindrical vessel and mean velocity distributions, turbulent kinetic energy distributions are computed by Finite Difference Method. The computed results of the velocity distributions are reasonably well agreed with the experimental data of investigators and those of turbulent kinetic energy show semi-quantitative agreements. This numerical experiments show that the fluid flow field in gas-stirred vessel is highly non-uniform and that velocity and turbulent kinetic energy show relatively higher values near free surface and plume zone than the bottom regions of vessel which has very lower values.
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