MODELLING OF CONVECTIVE - CONDUCTIVE HEAT TRANSFER WITH PHASE CHANGE IN AN ELECTRICALLY HEATED UO-2 POOL
This paper describes an explicit finite element solution to transient conductive - convective heat transfer problems with phase change within an electrically heated region. The basic governing equations include the incompressible Navier-Stokes equations and the thermal energy equation. The phase change is modelled by a variant of the enthalpy method. Heat is generated by Joule effect due to the passage of an electric current for which a steady situation is assumed. An explicit scheme is used for the time integration, based on a fractional step method. A second-order Taylor-Galerkin method is introduced in the convection phase. The equations are discretized successively in space using the standard Galerkin finite element method. A reduced integration has been introduced as an option. In addition, a group representation is used for the non-linear velocity terms. To illustrate the proposed methodology, an application related to experimental tests is described.
Bibliographic Reference: 8TH INTERNATIONAL CONFERENCE ON STRUCTURAL MECHANICS IN REACTOR TECHNOLOGY, BRUXELLES (BELGIUM), AUG. 19-23, 1985 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 32013 ORA
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Record Number: 1989123054900 / Last updated on: 1987-01-01
Available languages: en