ICONE11-36057 LAGRANGIAN EXTENSIBLE SIMULATION MODULES FOR FUEL-COOLANT INTERACTION

概要

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The numerical modules for simulating the motion of the Lagrangian particles and their interactions with the surrounding Eulerian fluids are currently being developed at Korea Atomic Energy Research Institute (KAERI). The basic concept employed in the modules is similar to that of TEXAS-V, which is the Lagrangian-Eulerian one-dimensional code. Unlike TEXAS-V, the motion of the particles can be simulated in one, two or three dimensions. The modules are not the stand-alone computer codes. Rather, they are designed to be incorporated into the existing multi-phase multi-dimensional computer codes. This will introduce the ability to model the discrete medium fields into the existing computer codes with the minimal effort. Currently, the models for simulating the movements of the particle groups, the heat transfer process and the fragmentation of the particles due to the interaction with the surrounding fluid have been completed. The next stage of the development is to implement the modules to the multiphase fluid code K-FIX. The finished code will be tested, compared and verified with the experiment data and/or the results from other computer codes.
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