The TEXAS-V code was tuned for TROI-13 and used for analyzing the parametric findings of the TROI experiments. The calculations for the melt composition are relatively similar to the TROI experimental results, in which the melt composition has quite an effect on the steam explosion occurrence probabilities and a steam explosion itself. The void fraction difference due to a particle size difference appears to cause this composition dependency of a steam explosion. The water depth effect in the TEXAS-V code seems to be consistent with the TROI experiments to some degree. The water area effect of the TEXAS-V calculations isn’t exactly harmonious with that of the TROI experiments. This indicates that TEXAS-V code as a 1-dimensional code or as a numerical steam explosion has a limitation in estimating an area effect. The experimental information on the particle size and the void fraction during mixing is very helpful for a verification of this relation.