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Peggy Courtois, Rammile Ettelaie, Jianshe Chen
Numerical Studies of Transport Properties in Heterogeneous Food Systems
Appl. Rheol. 16:5 (2006) 275-286
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The current computer simulation based study aims to elucidate the complex role that the state of aggregation
and morphology of the food materials plays in determining their transport behaviour. Using Brownian dynamic
simulations, applied to colloidal systems, we simulate the compression of two different dense layers of
nanoparticles (with reversible and irreversible bonds), at interface, at three different compression rates. We
determine the desired transport coefficient for these structures using a novel technique, originally proposed by
Torquato and Kim (1990). This method allows us to consider complex structures in our study, for which calculations
of effective transport coefficients using conventional methods, like finite elements and finite difference,
would be relatively difficult. We first validate our algorithm by comparing its results with those of exact calculations,
for different regular lattices. Our results are in excellent agreement with the theory. The variation in the
transport coefficient of nano-particle monolayers during the compression, are also correlated with the build up
of stress and changes in the structure of the films.
► Cite this publication as follows:
Courtois P, Ettelaie R, Chen J: Numerical Studies of Transport Properties in Heterogeneous Food Systems, Appl. Rheol. 16 (2006) 275.
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