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Data-driven inverse modelling through neural network (deep learning) and computational heat transfer

Hamid Tamaddon-Jahromi, Neeraj Kavan Chakshu, Igor Sazonov Orcid Logo, Llion Evans Orcid Logo, Hywel Thomas Orcid Logo, Perumal Nithiarasu Orcid Logo

Computer Methods in Applied Mechanics and Engineering, Volume: 369

Swansea University Authors: Hamid Tamaddon-Jahromi, Neeraj Kavan Chakshu, Igor Sazonov Orcid Logo, Llion Evans Orcid Logo, Hywel Thomas Orcid Logo, Perumal Nithiarasu Orcid Logo

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Abstract

In this work, the potential of carrying out inverse problems with linear and non-linear behaviour is investigated using deep learning methods. In inverse problems, the boundary conditions are determined using sparse measurement of a variable such as velocity or temperature. Although this is mathemat...

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Published in: Computer Methods in Applied Mechanics and Engineering
ISSN: 0045-7825
Published: Elsevier BV 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa54477
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In inverse problems, the boundary conditions are determined using sparse measurement of a variable such as velocity or temperature. Although this is mathematically tractable for simple problems, it can be extremely challenging for complex problems. To overcome the non-linear and complex effects, a brute force approach was used on a trial and error basis to find an approximate solution. With the advent of machine learning algorithms it may now be possible to model inverse problems faster and more accurately. In order to demonstrate that machine learning can be used in solving inverse problems, we propose a fusion between computational mechanics and machine learning. The forward problems are solved first to create a database. This database is then used to train the machine learning algorithms. The trained algorithm is then used to determine the boundary conditions of a problem from assumed measurements. The proposed method is tested for the linear/non-linear heat conduction, convection&#x2013;conduction, and natural convection problems in which the boundary conditions are determined by providing three, four, and five temperature measurements. 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spelling 2021-12-02T11:37:40.9844676 v2 54477 2020-06-15 Data-driven inverse modelling through neural network (deep learning) and computational heat transfer b3a1417ca93758b719acf764c7ced1c5 Hamid Tamaddon-Jahromi Hamid Tamaddon-Jahromi true false e21c85ee9062e9be0fff8ab9d77b14d7 Neeraj Kavan Chakshu Neeraj Kavan Chakshu true false 05a507952e26462561085fb6f62c8897 0000-0001-6685-2351 Igor Sazonov Igor Sazonov true false 74dc5084c47484922a6e0135ebcb9402 0000-0002-4964-4187 Llion Evans Llion Evans true false 08ebc76b093f3e17fed29281f5cb637e 0000-0002-3951-0409 Hywel Thomas Hywel Thomas true false 3b28bf59358fc2b9bd9a46897dbfc92d 0000-0002-4901-2980 Perumal Nithiarasu Perumal Nithiarasu true false 2020-06-15 CIVL In this work, the potential of carrying out inverse problems with linear and non-linear behaviour is investigated using deep learning methods. In inverse problems, the boundary conditions are determined using sparse measurement of a variable such as velocity or temperature. Although this is mathematically tractable for simple problems, it can be extremely challenging for complex problems. To overcome the non-linear and complex effects, a brute force approach was used on a trial and error basis to find an approximate solution. With the advent of machine learning algorithms it may now be possible to model inverse problems faster and more accurately. In order to demonstrate that machine learning can be used in solving inverse problems, we propose a fusion between computational mechanics and machine learning. The forward problems are solved first to create a database. This database is then used to train the machine learning algorithms. The trained algorithm is then used to determine the boundary conditions of a problem from assumed measurements. The proposed method is tested for the linear/non-linear heat conduction, convection–conduction, and natural convection problems in which the boundary conditions are determined by providing three, four, and five temperature measurements. This study demonstrates that the proposed fusion of computational mechanics and machine learning is an effective way of tackling complex inverse problems. Journal Article Computer Methods in Applied Mechanics and Engineering 369 Elsevier BV 0045-7825 Inverse modelling, Computational mechanics, Machine learning, Heat conduction, Heat convection–conduction, Natural convection 1 9 2020 2020-09-01 10.1016/j.cma.2020.113217 COLLEGE NANME Civil Engineering COLLEGE CODE CIVL Swansea University UKRI, EP/R012091/1 2021-12-02T11:37:40.9844676 2020-06-15T14:24:38.2793452 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering Hamid Tamaddon-Jahromi 1 Neeraj Kavan Chakshu 2 Igor Sazonov 0000-0001-6685-2351 3 Llion Evans 0000-0002-4964-4187 4 Hywel Thomas 0000-0002-3951-0409 5 Perumal Nithiarasu 0000-0002-4901-2980 6 54477__17614__6bf9c9ec50444af6ba72f369d18a529b.pdf 54477.pdf 2020-07-01T13:25:36.4150247 Output 2668543 application/pdf Version of Record true Released under the terms of a Creative Commons Attribution License (CC-BY). true eng https://creativecommons.org/licenses/by/4.0/
title Data-driven inverse modelling through neural network (deep learning) and computational heat transfer
spellingShingle Data-driven inverse modelling through neural network (deep learning) and computational heat transfer
Hamid Tamaddon-Jahromi
Neeraj Kavan Chakshu
Igor Sazonov
Llion Evans
Hywel Thomas
Perumal Nithiarasu
title_short Data-driven inverse modelling through neural network (deep learning) and computational heat transfer
title_full Data-driven inverse modelling through neural network (deep learning) and computational heat transfer
title_fullStr Data-driven inverse modelling through neural network (deep learning) and computational heat transfer
title_full_unstemmed Data-driven inverse modelling through neural network (deep learning) and computational heat transfer
title_sort Data-driven inverse modelling through neural network (deep learning) and computational heat transfer
author_id_str_mv b3a1417ca93758b719acf764c7ced1c5
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74dc5084c47484922a6e0135ebcb9402
08ebc76b093f3e17fed29281f5cb637e
3b28bf59358fc2b9bd9a46897dbfc92d
author_id_fullname_str_mv b3a1417ca93758b719acf764c7ced1c5_***_Hamid Tamaddon-Jahromi
e21c85ee9062e9be0fff8ab9d77b14d7_***_Neeraj Kavan Chakshu
05a507952e26462561085fb6f62c8897_***_Igor Sazonov
74dc5084c47484922a6e0135ebcb9402_***_Llion Evans
08ebc76b093f3e17fed29281f5cb637e_***_Hywel Thomas
3b28bf59358fc2b9bd9a46897dbfc92d_***_Perumal Nithiarasu
author Hamid Tamaddon-Jahromi
Neeraj Kavan Chakshu
Igor Sazonov
Llion Evans
Hywel Thomas
Perumal Nithiarasu
author2 Hamid Tamaddon-Jahromi
Neeraj Kavan Chakshu
Igor Sazonov
Llion Evans
Hywel Thomas
Perumal Nithiarasu
format Journal article
container_title Computer Methods in Applied Mechanics and Engineering
container_volume 369
publishDate 2020
institution Swansea University
issn 0045-7825
doi_str_mv 10.1016/j.cma.2020.113217
publisher Elsevier BV
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering
document_store_str 1
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description In this work, the potential of carrying out inverse problems with linear and non-linear behaviour is investigated using deep learning methods. In inverse problems, the boundary conditions are determined using sparse measurement of a variable such as velocity or temperature. Although this is mathematically tractable for simple problems, it can be extremely challenging for complex problems. To overcome the non-linear and complex effects, a brute force approach was used on a trial and error basis to find an approximate solution. With the advent of machine learning algorithms it may now be possible to model inverse problems faster and more accurately. In order to demonstrate that machine learning can be used in solving inverse problems, we propose a fusion between computational mechanics and machine learning. The forward problems are solved first to create a database. This database is then used to train the machine learning algorithms. The trained algorithm is then used to determine the boundary conditions of a problem from assumed measurements. The proposed method is tested for the linear/non-linear heat conduction, convection–conduction, and natural convection problems in which the boundary conditions are determined by providing three, four, and five temperature measurements. This study demonstrates that the proposed fusion of computational mechanics and machine learning is an effective way of tackling complex inverse problems.
published_date 2020-09-01T04:08:02Z
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