Nonlinear geometrically adaptive finite element model of the coilbox
- Univ. de Oriente, Puerto La Cruz (Venezuela). Dept. de Mecanica
Hot bar heat loss in the transfer table, the rolling stage between rougher stands and finishing stands in a hot mill, is of major concern for reasons for energy consumption, metallurgical uniformity, and rollability. A mathematical model, as well as the corresponding numerical solution, is presented for the evolution of temperature in a coiling and uncoiling bar in hot mills in the form of a parabolic partial differential equation for a shape-changing domain. The space discretization is achieved via a computationally efficient geometrically adaptive finite element scheme that accommodates the change in shape of the domain, using a computationally novel treatment of the resulting thermal contact problem due to coiling. Time is discretized according to a Crank-Nicolson scheme. Finally, some numerical results are presented.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 445381
- Journal Information:
- Numerical Heat Transfer. Part A, Applications, Vol. 30, Issue 8; Other Information: PBD: Dec 1996
- Country of Publication:
- United States
- Language:
- English
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