Kowalczyk, Wojciech; Hartmann, Christoph; Delgado, Antonio:

Influence of convection on the high pressure induced phase changes in a liquid food (rev)

In: 4th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2004) / Neittaanmäki, P.; Rossi, T.; Majava, K.; Pironneau, O. (Hrsg.)
Jyväskylä, Finnland (2004), S. 1-10
Buchaufsatz / Kapitel / Fach: Physik
Fakultät für Ingenieurwissenschaften » Maschinenbau und Verfahrenstechnik
High pressure technology opens new possibilities for freezing and thawing of liquid
and solid substances. In the present contribution modelling and numerical simulation of high
pressure induced freezing and thawing processes of a fluid food system is presented. Phase
transitions between water and ice I under pressure in the range 0.1 – 200 MPa are simulated
accounting for convective motion of the liquid phase. The results of the simulation are
presented and temperature, velocity as well as liquid and solid phase distributions are
studied. It is shown that the spatial propagation of the ice front depends very strong on the
temperature and velocity field.