Influence of Resolution of Rasterized Geometries on Porosity and Specific Surface Area Exemplified for Model Geometries of Porous Media

Journal article
(Original article)


Publication Details

Author(s): Heidig T, Zeiser T, Freund H
Journal: Transport in Porous Media
Publication year: 2017
Volume: 120
Journal issue: 1
Pages range: 207–225
ISSN: 0169-3913
Language: English


Abstract

Rasterized representations of geometrical structures are commonplace in science and engineering. They are used in analysis and design of complex geometrical structures; however, the introduced errors for volume and surface estimation are often not considered in detail. To provide insight and information on these effects, in this study model geometries of porous media (simple cubic, body-centered cubic, face-centered cubic) are used to investigate the influence of resolution (voxels per length) on volume and surface approximation. The numerically obtained results are compared with analytical solutions for porosity and specific surface area. Small deviations from the real volume are found for the rasterized geometry at reasonable resolution. For the estimated surface area, in contrast, when using marching cubes considerable deviations from the analytically calculated surface area are found even at relatively fine resolutions. These findings are especially important for the use of rasterized voxel data as input for engineering correlations to estimate characteristic physical transport properties such as pressure drop or effective heat transport.


FAU Authors / FAU Editors

Freund, Hannsjörg Prof. Dr.
Professur für Katalytische Reaktoren und Prozesstechnik
Heidig, Tobias
Professur für Katalytische Reaktoren und Prozesstechnik
Zeiser, Thomas Dr.
Regionales Rechenzentrum Erlangen (RRZE)


Additional Organisation
Exzellenz-Cluster Engineering of Advanced Materials


Research Fields

D Catalytic Materials
Exzellenz-Cluster Engineering of Advanced Materials
Modellierung/Simulation/Optimierung
Research focus area of a faculty: Technische Fakultät


How to cite

APA:
Heidig, T., Zeiser, T., & Freund, H. (2017). Influence of Resolution of Rasterized Geometries on Porosity and Specific Surface Area Exemplified for Model Geometries of Porous Media. Transport in Porous Media, 120(1), 207–225. https://dx.doi.org/10.1007/s11242-017-0916-y

MLA:
Heidig, Tobias, Thomas Zeiser, and Hannsjörg Freund. "Influence of Resolution of Rasterized Geometries on Porosity and Specific Surface Area Exemplified for Model Geometries of Porous Media." Transport in Porous Media 120.1 (2017): 207–225.

BibTeX: 

Last updated on 2019-14-03 at 10:46