Numerical study of a continuous casting process with electromagnetic brake


Numerical study of a continuous casting process with electromagnetic brake

Miao, X.

This dissertation investigates the effect of electromagnetic braking and gas injection on the fluid flow in a continuous casting slab mold numerically and makes verifications on basis of a small Liquid Metal Model for Continuous Casting of steel (mini-LIMMCAST). Numerical calculations were performed by means of the software package CFX with an implemented RANS-SST turbulence model. The nonisotropic nature of the MHD turbulence was taken into account by specific modifications of the turbulence model. The numerical results were validated by flow measurements at the mini-LIMMCAST facility. Numerical simulations disclose the damping effect on the flow closely depending on the wall conductance ratio. In addition, specific modifications of the turbulence model play a crucial role in reconstructing the peculiar phenomenon of an excitation of nonsteady, nonisotropic, largescale flow perturbations caused by the application of the DC magnetic field.

  • Doctoral thesis
    TU Bergakademie Freiberg, 2014
    128 Seiten

Permalink: https://www.hzdr.de/publications/Publ-19940
Publ.-Id: 19940