Predicting porosity, permeability, and tortuosity of porous media from images by deep learning

Abstract Convolutional neural networks (CNN) are utilized to encode the relation between initial configurations of obstacles and three fundamental quantities in porous media: porosity ( $$\varphi$$ φ ), permeability (k), and tortuosity (T). The two-dimensional systems with obstacles are considered....

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Main Authors: Krzysztof M. Graczyk, Maciej Matyka
Format: Article
Language:English
Published: Nature Portfolio 2020-12-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-020-78415-x
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author Krzysztof M. Graczyk
Maciej Matyka
author_facet Krzysztof M. Graczyk
Maciej Matyka
author_sort Krzysztof M. Graczyk
collection DOAJ
description Abstract Convolutional neural networks (CNN) are utilized to encode the relation between initial configurations of obstacles and three fundamental quantities in porous media: porosity ( $$\varphi$$ φ ), permeability (k), and tortuosity (T). The two-dimensional systems with obstacles are considered. The fluid flow through a porous medium is simulated with the lattice Boltzmann method. The analysis has been performed for the systems with $$\varphi \in (0.37,0.99)$$ φ ∈ ( 0.37 , 0.99 ) which covers five orders of magnitude a span for permeability $$k \in (0.78, 2.1\times 10^5)$$ k ∈ ( 0.78 , 2.1 × 10 5 ) and tortuosity $$T \in (1.03,2.74)$$ T ∈ ( 1.03 , 2.74 ) . It is shown that the CNNs can be used to predict the porosity, permeability, and tortuosity with good accuracy. With the usage of the CNN models, the relation between T and $$\varphi$$ φ has been obtained and compared with the empirical estimate.
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spelling doaj.art-44c73faaec22405489053f3f380e5ee82022-12-21T21:21:41ZengNature PortfolioScientific Reports2045-23222020-12-0110111110.1038/s41598-020-78415-xPredicting porosity, permeability, and tortuosity of porous media from images by deep learningKrzysztof M. Graczyk0Maciej Matyka1Institute of Theoretical Physics, Faculty of Physics and Astronomy, University of WrocławInstitute of Theoretical Physics, Faculty of Physics and Astronomy, University of WrocławAbstract Convolutional neural networks (CNN) are utilized to encode the relation between initial configurations of obstacles and three fundamental quantities in porous media: porosity ( $$\varphi$$ φ ), permeability (k), and tortuosity (T). The two-dimensional systems with obstacles are considered. The fluid flow through a porous medium is simulated with the lattice Boltzmann method. The analysis has been performed for the systems with $$\varphi \in (0.37,0.99)$$ φ ∈ ( 0.37 , 0.99 ) which covers five orders of magnitude a span for permeability $$k \in (0.78, 2.1\times 10^5)$$ k ∈ ( 0.78 , 2.1 × 10 5 ) and tortuosity $$T \in (1.03,2.74)$$ T ∈ ( 1.03 , 2.74 ) . It is shown that the CNNs can be used to predict the porosity, permeability, and tortuosity with good accuracy. With the usage of the CNN models, the relation between T and $$\varphi$$ φ has been obtained and compared with the empirical estimate.https://doi.org/10.1038/s41598-020-78415-x
spellingShingle Krzysztof M. Graczyk
Maciej Matyka
Predicting porosity, permeability, and tortuosity of porous media from images by deep learning
Scientific Reports
title Predicting porosity, permeability, and tortuosity of porous media from images by deep learning
title_full Predicting porosity, permeability, and tortuosity of porous media from images by deep learning
title_fullStr Predicting porosity, permeability, and tortuosity of porous media from images by deep learning
title_full_unstemmed Predicting porosity, permeability, and tortuosity of porous media from images by deep learning
title_short Predicting porosity, permeability, and tortuosity of porous media from images by deep learning
title_sort predicting porosity permeability and tortuosity of porous media from images by deep learning
url https://doi.org/10.1038/s41598-020-78415-x
work_keys_str_mv AT krzysztofmgraczyk predictingporositypermeabilityandtortuosityofporousmediafromimagesbydeeplearning
AT maciejmatyka predictingporositypermeabilityandtortuosityofporousmediafromimagesbydeeplearning