Modeling of material and energy flow in an EBCHR casting system
- Aspen Technology, Inc., Cambridge, MA (United States)
- Lawrence Livermore National Lab., CA (United States)
A numerical and experimental analysis is made of fluid flow and heat transfer in a continuous casting system with an electron-beam energy source. For a cylindrical ingot confined in a water-cooled crucible, a two-dimensional, steady-state model is developed which includes the effects of free convection in the pool and conduction in the two-phase and solid regions. A modified Galerkin finite element method is used to solve for the flow and temperature fields simultaneously with the upper and lower boundaries of the pool. The calculation grid deforms along vertical spines as these phase boundaries move. Heat flows are measured in a steady-state experiment involving a short ingot and no pouring. Heat transfer coefficients representing contact resistance are determined, and measured heat flows are compared with model values. Flow and temperature fields along with solidification-zone boundaries are calculated for the experimental case and a case in which the ingot cooling is improved.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 93463
- Report Number(s):
- UCRL-JC-118172; CONF-9411237-1; ON: DE95014163
- Resource Relation:
- Conference: 1994 electron beam melting and refining state of the art conference, Reno, NV (United States), 1 Nov 1994; Other Information: PBD: Nov 1994
- Country of Publication:
- United States
- Language:
- English
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