A novel approach for numerical simulation of plant tissue shrinkage during drying
Paper
Paper/Presentation Title | A novel approach for numerical simulation of plant tissue shrinkage during drying |
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Presentation Type | Paper |
Authors | Karunasena, H. C. P. (Author), Senadeera, W. (Author), Brown, R. J. (Author) and Gu, Y. T. (Author) |
Editors | Thilakaratne, B. M. K. S., Rathnayake, H. M. A. P., Champa, W. A. H. and Wasala, W. M. C. B. |
Journal or Proceedings Title | Proceedings of the International Research Symposium on Postharvest Technology 2014: Safe Food for Healthy Life |
Number of Pages | 6 |
Year | 2014 |
Place of Publication | Anuradapura, Sri-Lanka |
Web Address (URL) of Paper | https://www.researchgate.net/profile/Chaminda_Karunasena/publication/271207512_A_novel_approach_for_numerical_simulation_of_plant_tissue_shrinkage_during_drying/links/54c1dc8b0cf25b4b8072afaf.pdf |
Conference/Event | International Research Symposium on Postharvest Technology 2014: Safe Food for Healthy Life |
Event Details | International Research Symposium on Postharvest Technology 2014: Safe Food for Healthy Life Parent International Research Symposium on Postharvest Technology Event Date 19 Jun 2014 Event Location Anuradapura, Sri-Lanka |
Abstract | Drying is a key processing techniques used in food engineering which demands continual developments on advanced analysis techniques in order to optimize the product and the process. In this regard, plant based materials are a frequent subject of interest where microstructural studies can provide a clearer understanding on the fundamental physical mechanisms involved. In this context, considering numerous challenges of using conventional numerical grid-based modelling techniques, a meshfree particle based model was developed to simulate extreme deformations of plant microstructure during drying. The proposed technique is based on a particle based meshfree method: Smoothed Particle Hydrodynamics (SPH) and a Discrete Element Method (DEM). A tissue model was developed by aggrading individual cells modelled with SPH-DEM coupled approach by initializing the cells as hexagons and aggregating them to form a tissue. The model also involves a middle lamella resembling real tissues. Using the model, different dried tissue states were simulated with different moisture content, the turgor pressure, and cell wall contraction effects. Compared to the state of the art grid-based microscale plant tissue drying models, the proposed model is capable of simulating plant tissues at lower moisture contents which results in excessive shrinkage and cell wall wrinkling. Model predictions were compared with experimental findings and a fairly good agreement was observed both qualitatively and quantitatively. |
Keywords | food drying, plant cells, SPH, moisture content, shrinkage |
ANZSRC Field of Research 2020 | 400405. Food engineering |
Public Notes | Responsibilities for the contents of the articles included in this publication remain with the respective authors. |
Byline Affiliations | Queensland University of Technology |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q3wz7/a-novel-approach-for-numerical-simulation-of-plant-tissue-shrinkage-during-drying
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