Prediction of pore-scale flow in heterogeneous porous media from periodic structures using deep learning

Data-driven deep learning models are emerging as a promising method for characterizing pore-scale flow through complex porous media while requiring minimal computational power. However, previous models often require extensive computation to simulate flow through synthetic porous media for use as tra...

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Main Authors: Danny D. Ko, Hangjie Ji, Y. Sungtaek Ju
Format: Article
Language:English
Published: AIP Publishing LLC 2023-04-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/5.0147472
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author Danny D. Ko
Hangjie Ji
Y. Sungtaek Ju
author_facet Danny D. Ko
Hangjie Ji
Y. Sungtaek Ju
author_sort Danny D. Ko
collection DOAJ
description Data-driven deep learning models are emerging as a promising method for characterizing pore-scale flow through complex porous media while requiring minimal computational power. However, previous models often require extensive computation to simulate flow through synthetic porous media for use as training data. We propose a convolutional neural network trained solely on periodic unit cells to predict pore-scale velocity fields of complex heterogeneous porous media from binary images without the need for further image processing. Our model is trained using a range of simple and complex unit cells that can be obtained analytically or numerically at a low computational cost. Our results show that the model accurately predicts the permeability and pore-scale flow characteristics of synthetic porous media and real reticulated foams. We significantly improve the convergence of numerical simulations by using the predictions from our model as initial guesses. Our approach addresses the limitations of previous models and improves computational efficiency, enabling the rigorous characterization of large batches of complex heterogeneous porous media for a variety of engineering applications.
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spelling doaj.art-35ec63db05aa46d4923c7b6ba558a45a2023-07-26T14:57:20ZengAIP Publishing LLCAIP Advances2158-32262023-04-01134045324045324-1610.1063/5.0147472Prediction of pore-scale flow in heterogeneous porous media from periodic structures using deep learningDanny D. Ko0Hangjie Ji1Y. Sungtaek Ju2Department of Mechanical and Aerospace Engineering, University of California Los Angeles, Los Angeles, California 90095, USADepartment of Mathematics, North Carolina State University, Raleigh, North Carolina 27695, USADepartment of Mechanical and Aerospace Engineering, University of California Los Angeles, Los Angeles, California 90095, USAData-driven deep learning models are emerging as a promising method for characterizing pore-scale flow through complex porous media while requiring minimal computational power. However, previous models often require extensive computation to simulate flow through synthetic porous media for use as training data. We propose a convolutional neural network trained solely on periodic unit cells to predict pore-scale velocity fields of complex heterogeneous porous media from binary images without the need for further image processing. Our model is trained using a range of simple and complex unit cells that can be obtained analytically or numerically at a low computational cost. Our results show that the model accurately predicts the permeability and pore-scale flow characteristics of synthetic porous media and real reticulated foams. We significantly improve the convergence of numerical simulations by using the predictions from our model as initial guesses. Our approach addresses the limitations of previous models and improves computational efficiency, enabling the rigorous characterization of large batches of complex heterogeneous porous media for a variety of engineering applications.http://dx.doi.org/10.1063/5.0147472
spellingShingle Danny D. Ko
Hangjie Ji
Y. Sungtaek Ju
Prediction of pore-scale flow in heterogeneous porous media from periodic structures using deep learning
AIP Advances
title Prediction of pore-scale flow in heterogeneous porous media from periodic structures using deep learning
title_full Prediction of pore-scale flow in heterogeneous porous media from periodic structures using deep learning
title_fullStr Prediction of pore-scale flow in heterogeneous porous media from periodic structures using deep learning
title_full_unstemmed Prediction of pore-scale flow in heterogeneous porous media from periodic structures using deep learning
title_short Prediction of pore-scale flow in heterogeneous porous media from periodic structures using deep learning
title_sort prediction of pore scale flow in heterogeneous porous media from periodic structures using deep learning
url http://dx.doi.org/10.1063/5.0147472
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AT hangjieji predictionofporescaleflowinheterogeneousporousmediafromperiodicstructuresusingdeeplearning
AT ysungtaekju predictionofporescaleflowinheterogeneousporousmediafromperiodicstructuresusingdeeplearning