Fractal modeling of moisture diffusion in wood cell wall
Abstract Moisture diffusion in wood remains incompletely understood due to its complex hierarchical structure. This study develops a theoretical fractal moisture diffusion model for the wood cell wall, incorporating its structural geometry, and upscales it to bulk wood using electrical resistance mo...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-06-01
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| Series: | Journal of Wood Science |
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| Online Access: | https://doi.org/10.1186/s10086-025-02193-1 |
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| author | Dessie T. Tibebu Stavros Avramidis |
| author_facet | Dessie T. Tibebu Stavros Avramidis |
| author_sort | Dessie T. Tibebu |
| collection | DOAJ |
| description | Abstract Moisture diffusion in wood remains incompletely understood due to its complex hierarchical structure. This study develops a theoretical fractal moisture diffusion model for the wood cell wall, incorporating its structural geometry, and upscales it to bulk wood using electrical resistance modeling and validation. The model accounts for fractal dimensions, porosity, and pore size distribution. Water vapor sorption data, obtained via dynamic sorption, were used to derive experimental diffusion coefficients, while mercury intrusion porosimetry characterized pore size distributions and calculated pore fractal dimensions. Model validation showed that predicted diffusion coefficients aligned with experimental values at low moisture contents. Fractal diffusivity was negatively correlated with pore size ratio and fractal dimensions of pores and tortuosity but positively correlated with porosity. These findings support the development of predictive models for wood geometric properties and moisture diffusivity based on structural attributes. |
| format | Article |
| id | doaj-art-0da564d37f1e442ab351c2c554a8aa72 |
| institution | Kabale University |
| issn | 1611-4663 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of Wood Science |
| spelling | doaj-art-0da564d37f1e442ab351c2c554a8aa722025-08-20T03:25:15ZengSpringerOpenJournal of Wood Science1611-46632025-06-0171111410.1186/s10086-025-02193-1Fractal modeling of moisture diffusion in wood cell wallDessie T. Tibebu0Stavros Avramidis1Department of Wood Science and Engineering, College of Forestry, Oregon State UniversityDepartment of Wood Science, Faculty of Forestry, The University of British ColumbiaAbstract Moisture diffusion in wood remains incompletely understood due to its complex hierarchical structure. This study develops a theoretical fractal moisture diffusion model for the wood cell wall, incorporating its structural geometry, and upscales it to bulk wood using electrical resistance modeling and validation. The model accounts for fractal dimensions, porosity, and pore size distribution. Water vapor sorption data, obtained via dynamic sorption, were used to derive experimental diffusion coefficients, while mercury intrusion porosimetry characterized pore size distributions and calculated pore fractal dimensions. Model validation showed that predicted diffusion coefficients aligned with experimental values at low moisture contents. Fractal diffusivity was negatively correlated with pore size ratio and fractal dimensions of pores and tortuosity but positively correlated with porosity. These findings support the development of predictive models for wood geometric properties and moisture diffusivity based on structural attributes.https://doi.org/10.1186/s10086-025-02193-1WoodFractal dimensionMoisture diffusion coefficientPore structureMercury intrusion porosimetryPore size distribution |
| spellingShingle | Dessie T. Tibebu Stavros Avramidis Fractal modeling of moisture diffusion in wood cell wall Journal of Wood Science Wood Fractal dimension Moisture diffusion coefficient Pore structure Mercury intrusion porosimetry Pore size distribution |
| title | Fractal modeling of moisture diffusion in wood cell wall |
| title_full | Fractal modeling of moisture diffusion in wood cell wall |
| title_fullStr | Fractal modeling of moisture diffusion in wood cell wall |
| title_full_unstemmed | Fractal modeling of moisture diffusion in wood cell wall |
| title_short | Fractal modeling of moisture diffusion in wood cell wall |
| title_sort | fractal modeling of moisture diffusion in wood cell wall |
| topic | Wood Fractal dimension Moisture diffusion coefficient Pore structure Mercury intrusion porosimetry Pore size distribution |
| url | https://doi.org/10.1186/s10086-025-02193-1 |
| work_keys_str_mv | AT dessiettibebu fractalmodelingofmoisturediffusioninwoodcellwall AT stavrosavramidis fractalmodelingofmoisturediffusioninwoodcellwall |