Article (Scientific journals)
Modeling transient natural convection in heterogeneous porous media with Convolutional Neural Networks
Virupaksha, Adhish Guli; Nagel, Thomas; Lehmann, François et al.
2024In International Journal of Heat and Mass Transfer, 222, p. 125149
Peer Reviewed verified by ORBi
 

Files


Full Text
Modeling transient natural convection in heterogeneous porous media with Convolutional Neural Networks_Virupaksha_IJHMT_222(2024)125149.pdf
Author postprint (8.87 MB)
Request a copy

All documents in ORBilu are protected by a user license.

Send to



Details



Keywords :
3D-CNN; CNN-LSTM; Convolutional Neural Networks; Image-to-image regression; Natural convection in porous media; Surrogate and inverse modeling; 3d-convolutional neural network; Convection in porous medias; Convolutional neural network; Convolutional neural network-long short-term memory; Image regression; Inverse modelling; Natural convection in porous medium; Surrogate modeling; Condensed Matter Physics; Mechanical Engineering; Fluid Flow and Transfer Processes
Abstract :
[en] Convolutional Neural Networks (CNNs) are gaining significant attention in applications related to coupled flow and transfer processes in porous media, especially when dealing with image-like data. In this context, the most important applications are related to surrogate modeling, where data obtained from simulators is used to train a CNN model. CNNs are also used as optimizers for inverse modeling or parameter estimation. For natural convection in porous media, applications of CNNs are scarce and limited to steady-state data. The main goal of this paper is to extend the applications of CNNs to transient data, by developing new CNN models that allow for integrating time-variant images. Thus, we suggest using an Encoder-Decoder CNN (ED-CNN) for surrogate modeling and a 3D-CNN for inverse modeling. Besides surrogate and inverse modeling, we suggest using CNN for time prediction by coupling it with long short-term memory (LSTM). The performances of these suggested approaches are investigated by applying them to the benchmark of natural convection in porous cavity with heterogeneous property fields, and by comparing the suggested approaches to other alternatives such as standard deep neural network (DNN) and 2D-CNN trained on steady-state data. The results show that, for surrogate modeling, with the same amount of data and equivalent training times, ED-CNN is more practical than DNN because it provides spatially distributed prediction while DNN is limited to local data. The transient data allows for improving the performance of CNN in inverse modeling because it provides more information about heat transfer across the different material zones and thus heterogeneity. The 3D-CNN approach is more efficient than 2D-CNN as it allows for considering the time progress in the training. For instance, the error with 3D-CNN and transient data is about 11 %, while it is about 18 % with 2D-CNN. Coupling CNN with LSTM allows for improving the performance of CNN in time series prediction.
Disciplines :
Mechanical engineering
Author, co-author :
Virupaksha, Adhish Guli;  Université de Strasbourg, ENGEES, CNRS, ITES UMR 7063, Strasbourg, France ; Geotechnical Institute, Technische Universität Bergakademie Freiberg, Freiberg, Germany
Nagel, Thomas ;  Geotechnical Institute, Technische Universität Bergakademie Freiberg, Freiberg, Germany
Lehmann, François ;  Université de Strasbourg, ENGEES, CNRS, ITES UMR 7063, Strasbourg, France
RAJABI, Mohammadmahdi  ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE)
Hoteit, Hussein;  Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Saudi Arabia
Fahs, Marwan ;  Université de Strasbourg, ENGEES, CNRS, ITES UMR 7063, Strasbourg, France
Le Ber, Florence ;  Université de Strasbourg, ENGEES, CNRS, ICube UMR 7357, Strasbourg, France
External co-authors :
yes
Language :
English
Title :
Modeling transient natural convection in heterogeneous porous media with Convolutional Neural Networks
Publication date :
May 2024
Journal title :
International Journal of Heat and Mass Transfer
ISSN :
0017-9310
eISSN :
1879-2189
Publisher :
Elsevier Ltd
Volume :
222
Pages :
125149
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
Deutsche Forschungsgemeinschaft
Technische Universität Bergakademie Freiberg
Funding text :
We thank Aqeel Afzal Chaudhry from the Geotechnical Institute at TU Bergakademie Freiberg for help in setting up the OGS simulations. We further acknowledge funding by the German Research Foundation (DFG, project INFRA NA1528/2–1 and MA4450/5–1). This work was motivated by results from a joint MSc thesis of the first author between Technische Universität Bergakademie Freiberg and the University of Strasbourg which was supported by the PROCOPE program.We thank Aqeel Afzal Chaudhry from the Geotechnical Institute at TU Bergakademie Freiberg for help in setting up the OGS simulations. We further acknowledge funding by the German Research Foundation (DFG, project INFRA NA1528/2–1 and MA4450/5–1). This work was motivated by results from a joint MSc thesis of the first author between Technische Universität Bergakademie Freiberg and the University of Strasbourg which was supported by the PROCOPE program.
Available on ORBilu :
since 02 March 2025

Statistics


Number of views
99 (3 by Unilu)
Number of downloads
0 (0 by Unilu)

Scopus citations®
 
20
Scopus citations®
without self-citations
18
OpenCitations
 
0
OpenAlex citations
 
22
WoS citations
 
18

Bibliography


Similar publications



Contact ORBilu