Abstract
In this study, a numerical simulation on the freezing and thawing process is proposed to evaluate the effects of freezing-point depression on the quality of frozen/thawed aqueous solution. Directional solidification processes of dilute solutions are simulated by considering solute redistribution at solid/liquid interface. The calculation results indicate that the solid/liquid interface shows a different behavior from the flat interface in the case of high rejection of solute. It is also found that concentrated areas of the frozen sample melts more quickly.
