Application of meshfree methods to numerically simulate microscale deformations of different plant food materials during drying
Article
Article Title | Application of meshfree methods to numerically simulate microscale deformations of different plant food materials during drying |
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ERA Journal ID | 9657 |
Article Category | Article |
Authors | Karunasena, H. C. P. (Author), Brown, R. J. (Author), Gu, Y. T. (Author) and Senadeera, W. (Author) |
Journal Title | Journal of Food Engineering |
Journal Citation | 146, pp. 209-226 |
Number of Pages | 18 |
Year | 2015 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 0260-8774 |
1873-5770 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.jfoodeng.2014.09.011 |
Abstract | Plant food materials have a very high demand in the consumer market and therefore, improved food products and efficient processing techniques are concurrently being researched in food engineering. In this context, numerical modelling and simulation techniques have a very high potential to reveal fundamentals of the underlying mechanisms involved. However, numerical modelling of plant food materials during drying becomes quite challenging, mainly due to the complexity of the multiphase microstructure of the material, which undergoes excessive deformations during drying. In this regard, conventional gridbased modelling techniques have limited applicability due to their inflexible grid-based fundamental limitations. As a result, meshfree methods have recently been developed which offer a more adaptable approach to problem domains of this nature, due to their fundamental grid-free advantages. In this work, a recently developed meshfree based two-dimensional plant tissue model is used for a comparative study of microscale morphological changes of several food materials during drying. The model involves Smoothed Particle Hydrodynamics (SPH) and Discrete Element Method (DEM) to represent fluid and solid phases of the cellular structure. Simulation are conducted on apple, potato, carrot and grape tissues and the results are qualitatively and quantitatively compared and related with experimental findings obtained from the literature. The study revealed that cellular deformations are highly sensitive to cell dimensions, cell wall physical and mechanical properties, middle lamella properties and turgor pressure.In particular, the meshfree model is well capable of simulating critically dried tissues at lower moisture content and turgor pressure, which lead to cell wall wrinkling. The findings further highlighted the potential applicability of the meshfree approach to model large deformations of the plant tissue microstructure during drying, providing a distinct advantage over the state of the art grid-based approaches. |
Keywords | meshfree method, micro scale, food, drying |
ANZSRC Field of Research 2020 | 400405. Food engineering |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Queensland University of Technology |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q3wx5/application-of-meshfree-methods-to-numerically-simulate-microscale-deformations-of-different-plant-food-materials-during-drying
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