Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 490184
Title Moisture transport in swelling media modelled with a Lattice Boltzmann scheme having a deforming lattice
Author(s) Sman, R.G.M. van der
Source Journal of Food Engineering 124 (2014). - ISSN 0260-8774 - p. 54 - 63.
DOI https://doi.org/10.1016/j.jfoodeng.2013.09.033
Department(s) Food Process Engineering
Publication type Refereed Article in a scientific journal
Publication year 2014
Keyword(s) non-brownian suspensions - diffusion lattice - water transport - flow - simulations - profiles - kinetics - food - gels - validation
Abstract In this paper we present a novel numerical scheme for simulating the one-dimensional deformation of hydrogel material due to drying or rehydration. The scheme is based on the versatile Lattice Boltzmann method, which has been extended such that the computational grid (lattice) deforms due to shrinkage or swelling. This property of a deforming grid is new to the lattice Boltzmann method, and a detailed description of this new method is given. Via simulations we show that self-similar moisture concentration profiles occur in two periods in both drying and swelling processes: the penetration period and the regular regime. Given the property of self-similarity, we have been able to formulate a reduced-order model for the regular regime of swelling.
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