CFD Simulation of Micro-Level Water Transport of Potato Cells in Periodic Condition: Apoplastic and Symplastic Hydrodynamic

Author:

Ghorba Fatemeh Mozafari1,Moghaddam Ahmad Ghazanfari1,Shamsi Mohsen1,Mohebbi Ali1

Affiliation:

1. Shahid Bahonar University of Kerman

Abstract

Abstract

The water transport mechanisms in potato microstructure consist of symplastic, apoplastic, and transcellular transport. Knowledge of the microscale behavior of water transport is important to increasing the productivity of food processing and obtaining high-grade processed food. In this research, a CFD simulation was performed in COMSOL Multiphysics for three different simplified designs of potato cell units representing a portion of microstructure, using three different equations for mass concentration in three parts, and velocity was simulated using the Brinkman equation in periodic boundary conditions during the low thermal process. The water concentration variation profile for the three designs is similar. The average velocity for all designs is the same in 0.72% cell fraction and has a difference in the highest fraction of 0.78% with 3.22×10− 9 m s− 1. From this simulation can conclude that velocity and diffusivity depend on both fraction and design, and mass concentration, and permeability depend on intercellular fraction for all designs, not the cell designs.

Publisher

Springer Science and Business Media LLC

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