FX2-POOL—A Two-Dimensional Coupled Hydrodynamic Thermodynamic and Neutronic Computer Model for Hypothetical Core Disruptive Accident Analysis
- 1 February 1977
- journal article
- research article
- Published by Taylor & Francis in Nuclear Science and Engineering
- Vol. 62 (2) , 195-214
- https://doi.org/10.13182/nse77-a26957
Abstract
Subroutine POOL was developed for the study of hypothetical core disruptive accidents in nuclear reactors and, as such, is set up for use as a subroutine in the FX-2 Dynamic Neutronics Code. This combination permits scoping studies of the total neutronic/hydrodynamic interactions and is capable of performing phenomenological investigations of hypothetical problems ranging from the high ramp disassembly calculations, performed in the past by the Lagrangian code VENUS, to the study of recriticality in boiling pools of fuel and steel. POOL specifically includes, in at least parametric fashion, the following phenomena: 1 intra- and inter-element heat transfer by diffusion, convection, and radiation for both fuel and steel inside the pool and at the boundaries2 local vapor generation and concurrent local pressurization3 hydrodynamic behavior using the inviscid Navier-Stokes equations in a Eulerian formulation.Sample results are shown for boil-up of an initially quiescent dense pool of fuel and steel. S...Keywords
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