Abstract
A computer program called SERAPHIM has been developed to calculate the multicomponent multiphase flow involving the sodium-water chemical reaction in a steam generator of sodium cooled fast reactors. In this study, numerical analysis of supersonic gas jets into liquid pools with or without chemical reaction was performed to validate the numerical methods. As validation for a non-reaction problem, the visualization experiment on the horizontal supersonic air jet into the water was analyzed. The behavior of the jet and the horizontal penetration length were reproduced very well. On the other hand, the experiment on the vertical supersonic chlorine jet into the Na-NaCl mixture was analyzed. The numerical result showed that the injected gas disappeared at a certain height. The estimated plume length showed good agreement with the experimental data. The numerical methods were found to be applicable to the multiphase flow with the supersonic gas jets and the chemical reaction.
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