Computer modeling of electromagnetic edge containment in twin-roll casting

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This paper presents modeling studies of magnetohydrodynamics (MHD) analysis in twin-roll casting. Argonne National Laboratory (ANL) and Inland Steel Company have worked together to develop a 3-D computer model that can predict eddy currents, fluid flows, and liquid metal containment for an electromagnetic (EM) edge containment device. This mathematical model can greatly shorten casting research on the use of EM fields for liquid metal containment and control. It can also optimize the existing casting processes and minimize expensive, time-consuming full-scale testing. The model was verified by comparing predictions with experimental results of liquid-metal containment and fluid flow in EM edge ... continued below

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12 p.

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Chang, F.C.; Turner, L.R.; Hull, J.R.; Wang, Y.H. & Blazek, K.E. July 1, 1998.

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Description

This paper presents modeling studies of magnetohydrodynamics (MHD) analysis in twin-roll casting. Argonne National Laboratory (ANL) and Inland Steel Company have worked together to develop a 3-D computer model that can predict eddy currents, fluid flows, and liquid metal containment for an electromagnetic (EM) edge containment device. This mathematical model can greatly shorten casting research on the use of EM fields for liquid metal containment and control. It can also optimize the existing casting processes and minimize expensive, time-consuming full-scale testing. The model was verified by comparing predictions with experimental results of liquid-metal containment and fluid flow in EM edge dams designed at Inland Steel for twin-roll casting. Numerical simulation was performed by coupling a three-dimensional (3-D) finite-element EM code (ELEKTRA) and a 3-D finite-difference fluids code (CaPS-EM) to solve Maxwell`s equations, Ohm`s law, Navier-Stokes equations, and transport equations of turbulence flow in a casting process that uses EM fields. ELEKTRA is able to predict the eddy-current distribution and electromagnetic forces in complex geometry. CaPS-EM is capable of modeling fluid flows with free-surfaces and dynamic rollers. The computed 3-D magnetic fields and induced eddy currents in ELEKTRA are used as input to flow-field computations in CaPS-EM. Results of the numerical simulation compared well with measurements obtained from both static and dynamic tests.

Physical Description

12 p.

Notes

OSTI as DE98057598

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  • 81. steelmaking conference and 57. ironmaking conferences and ICSTI `98: 2. international congress on science and technology of ironmaking, Toronto (Canada), 22-25 Mar 1998

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  • Other: DE98057598
  • Report No.: ANL/ET/CP--95108
  • Report No.: CONF-980387--
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 656701
  • Archival Resource Key: ark:/67531/metadc704802

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  • July 1, 1998

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  • Sept. 12, 2015, 6:31 a.m.

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Chang, F.C.; Turner, L.R.; Hull, J.R.; Wang, Y.H. & Blazek, K.E. Computer modeling of electromagnetic edge containment in twin-roll casting, article, July 1, 1998; United States. (digital.library.unt.edu/ark:/67531/metadc704802/: accessed December 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.