Simulation of plant cell shrinkage during drying – a SPH–DEM approach
Article
Article Title | Simulation of plant cell shrinkage during drying – a SPH–DEM approach |
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ERA Journal ID | 3475 |
Article Category | Article |
Authors | Karunasena, H. C. P. (Author), Senadeera, W. (Author), Brown, R. J. (Author) and Gu, Y. T. (Author) |
Journal Title | Engineering Analysis with Boundary Elements |
Journal Citation | 44, pp. 1-18 |
Number of Pages | 18 |
Year | 2014 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 0955-7997 |
1873-197X | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.enganabound.2014.04.004 |
Web Address (URL) | http://www.sciencedirect.com/science/article/pii/S0955799714000691 |
Abstract | Plant based dried food products are popular commodities in global market where much research is focused to improve the products and processing techniques. In this regard, numerical modeling is highly applicable and in this work, a coupled meshfree particle-based two-dimensional(2-D)model was developed to simulate microscale deformations of plant cells during drying.SmoothedParticleHydro-dynamics (SPH)was used to model the viscous cell protoplasm(cell fluid) by approximating it to an incompressible Newtonian fluid. The visco-elastic characteristic of the cell wall was approximated to a Neo-Hookean solid material augmented with a viscous termand modeled with a DiscreteElement Method (DEM).Compared to a previouswork , this study proposes three model improvements: linearly decreasing positive cell turgor pressure during drying,cell wall contraction forces and cellwall drying. the improvements made the model more comparable with experimental findings on dried cell morphology and geometric properties such as cell area,diameter,perimeter,roundness,elongation and compactness. This single cell model could be used as a building block for advanced tissue models which are highly applicable for product and process optimizations in Food Engineering. |
Keywords | SPH; meshfree methods; DEM; plant cells; numerical modeling; 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/q3wyv/simulation-of-plant-cell-shrinkage-during-drying-a-sph-dem-approach
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