18.03.2022

An example of a unidimensional solidification model

Solidification of fluids simply means changing from a liquid phase into a solid one. The two phases are separated with a discontinuous zone which is called the phase separation zone. The discontinuous zone during solidification moves and increases the zone of a solid phase called the solidified layer, where heat of phase change is generated. This leads to a conclusion that solidification process that occurs at a constant pressure requires heat to be removed from the substance being solidified. The generated heat is usually released to the surroundings through conduction and convection processes. The heat of a phase change in the solidification process of a liquid is called the solidification heat. Phase separation zone separates the two areas of diverse thermophysical properties. The solidification model is presented in figure 1.

More information can be found on the Educational Platform.