A numerical analysis of fluid flow, heat transfer and solidification in the bending-type square billet continuous casting process

A numerical modeling system was developed which can simulate the transport phenomena of a bending type square billet continuous casting process. Fluid flow and heat transfer were analyzed with a 3-dimensional finite volume method (FVM) with the aid of an effective heat capacity algorithm for the sol...

Full description

Saved in:
Bibliographic Details
Published in:Metals and materials (Seoul, Korea) Korea), 2002-02, Vol.8 (1), p.111-117
Main Authors: Hong, Ki-Ha, Kim, Chang-Soo, Cha, Pil-Ryung, Yoon, Jong-Kyu
Format: Article
Language:English
Subjects:
Algorithms
Bending
Billet casting
Continuous casting
Cooling
Finite volume method
Fluid flow
Fluids
Heat flux
Heat transfer
Molds
Numerical analysis
Shells
Solidification
Solids
Solvents
Studies
Thickness
Transport phenomena
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A numerical modeling system was developed which can simulate the transport phenomena of a bending type square billet continuous casting process. Fluid flow and heat transfer were analyzed with a 3-dimensional finite volume method (FVM) with the aid of an effective heat capacity algorithm for the solidification. For a complex geometry of the bending type billet caster, a body-fitted-coordinate (BFC) system was employed. The bent structure of the caster allows a recirculating flow to develop in the upper and outer-radius region and the main stream to shift toward inner radius. This causes the thinner solid shell in the inner radius region than in the outer one. Besides standard operation conditions, we have analyzed the results when casting speed, caster shape, and tundish superheat changes. Lower casting speed makes the solid shell thicker by reducing heat flux from the mold. In the vertical caster, solid shell thickness are more uniform than that in the bending-type in entire region. When superheat increases by 5 degree C, solid shell thickness at the mold exit becomes thinner by 1 mm.
ISSN:1598-9623
1225-9438
2005-4149
DOI:10.1007/BF03027037