TITLE:
Performance Optimization of a Six-Strand Tundish
AUTHORS:
Siddharth Gupta, Anupam Dewan
KEYWORDS:
Tundish; Inclusion Removal; CFD; Euler-Lagrangian Approach; Turbulence Modeling
JOURNAL NAME:
World Journal of Mechanics,
Vol.3 No.3,
June
10,
2013
ABSTRACT:
The aims of the present study are to predict and improve inclusion
separation capacity of a six strand tundish by employing flow
modifiers (dams and weirs) and to assess the influence of inclusion properties
(diameter and density) together with velocity of liquid steel at the
inlet gate on the inclusion removal efficiency of a six-strand tundish. Computational
solutions of the Reynolds-Averaged Navier-Strokes (RANS) equations together
with the energy equation are performed to obtain the steady, three-dimensional
velocity and temperature fields using the standard k-ε model of turbulence. These flow fields are then used to
predict the inclusion sepapration by numerically solving the inclusion
transport equation. To account for the effects of turbulence on particle
paths a discrete random walk model is employed. It was observed that with the
employment of flow modifiers, the inclusion separation capacity of tundish
increases without any large variation in the outlet temperatures. It is shown that
inclusion properties and velocity are important parameters in
defining the operating conditions of a six-strand tundish.