Journal of computational fluids engineering (한국전산유체공학회지)
- Volume 2 Issue 1
- /
- Pages.117-128
- /
- 1997
- /
- 1598-6071(pISSN)
CFD aided design of the continuous casting tundish
전산유체기법을 이용한 연속주조 Tundish 의 형상 설계
Abstract
Effects of dam and weir on the fluid flow and behavior of inclusions in the continuous casting tundish have been studied using the CFD (Computational Fluid Dynamics) technique. Inclusions affecting the quality of steel products have been considered to be passive: the fluid flow has been obtained for unstaggered grid points defined on body-fitted generalized cuvilinear coordinates with no attention on inclusions, and the spatial propagation of inclusions has been determined by using the flow field data. The result show that the dam and weir direct the flow to the free surface and increase the residence time of inclusions significantly, and thereby that inclusions have much more chance to be floated to the free surface of the tundish where it is eliminated. It is also found that they offer more margin on the geometric design of exit nozzles connected to moulds. This finding is particularly important for twin casting operations where the quality of steel products from the two moulds be kept uniformly.
Keywords
- Continuous Casting Tundish;
- Inclusion;
- Residence Time;
- Flow Modifier;
- One-Equation Turbulence Model;
- Convection Scheme
- 연속주조 Tundish;
- 불순물;
- 체류시간;
- 유동 수정기;
- 1-방정식 난류모형;
- 대류항 처리법;