Modelling of Diffusion in Random Packings of Core-Shell Particles

Date

2017-04-01

Author

Hatipoğlu, Emre
Koku, Harun

Metadata

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Core-Shell particles are commonly used materials in chromatography. In this study, a mathematical model that mimics diffusion around Core-Shell particles was developed. A random-walk based algorithm was implemented to simulate diffusion and a Core-Shell particle geometry was computationally formed, based on simple geometric constructs and relations. Diffusion simulations were carried out on a randomly packed geometry formed from these particles. The behavior of time-dependent diffusivity data obtained from the model was found to be consistent with prior literature data from nuclear magnetic resonance experiments where transient diffusivity of a self-diffusing substance was measured in porous media.

Subject Keywords

Core-Shell, Diffusion, Random-Walk, Geometry

URI

http://www.hjbc.hacettepe.edu.tr/journal/volume-45/issue-2/modelling-of-diffusion-in-random-packings-of-core-shell-particles/index.html
https://hdl.handle.net/11511/85835

Journal

Hacettepe Journal of Biology and Chemistry

DOI

https://doi.org/10.15671/HJBC.2017.162

Collections

Department of Chemical Engineering, Article

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Citation Formats

E. Hatipoğlu and H. Koku, “Modelling of Diffusion in Random Packings of Core-Shell Particles,” Hacettepe Journal of Biology and Chemistry, pp. 269–275, 2017, Accessed: 00, 2021. [Online]. Available: http://www.hjbc.hacettepe.edu.tr/journal/volume-45/issue-2/modelling-of-diffusion-in-random-packings-of-core-shell-particles/index.html.