ABSTRACT

Computational Fluid Dynamics (CFD) models have been applied in a number of applications, such as aerospace, automotive, nuclear and in food processing. High pressure processing (HPP) is a nonthermal treatment of food by the application of high pressure of the order of thousands of atmospheres. HPP of foods is an emerging technology of considerable interest because it permits microbial inactivation at low or moderate temperatures. G. Scott and P. Richardson discussed mathematical modeling techniques of CFD, which can be used to predict flow behavior of fluid food in food processing equipment. There is growing interest toward the use of mathematical models to predict food temperature during nonthermal treatment of foods such as HPP, but the literature shows limited attempts. During compression of liquid food, the liquid will be pushed initially by forced convection into the treatment chamber by the action of a high pressure pump/intensifier.