The Simulation of the Stratification Process of Some Liquid Salts by Using the Moving Particle Semi-Implicit Method

Abstract

The use of liquid fuel is one of the developments in nuclear technology. Molten Salt Reactor leads the new technology in nuclear engineering in using liquid fuel. One of the interesting phenomena about using liquid fuel is how the inter-liquid fuel interacts, especially its stratification behavior. In this study, some components of the liquid salts, i.e. LiF-BeF2 (flibe), LiF-NaF-KF (flinak), and NaF-ZrF4 (nafzirf), paired with the Al liquid, were investigated to understand the stratification behavior of these liquids by simulation in the framework of the Moving Particle Semi-Implicit (MPS). The obtained results show the typical results of stratification with different physical properties. On the other hand, these results are good enough in explaining the interaction inter-liquid. In this study, it is obtained that the difference in density of the colliding liquid has a significant effect on the stratification process. The different result was obtained when explaining the temperature. The temperature of the colliding liquids does not have a significant effect on both the stratification process and the velocity profiles. These results are very important to conduct the next study about liquid salts.