001     873125
005     20210130004404.0
024 7 _ |a arXiv:1911.11380
|2 arXiv
024 7 _ |a 2128/24059
|2 Handle
024 7 _ |a altmetric:71224905
|2 altmetric
037 _ _ |a FZJ-2020-00570
100 1 _ |a Bode, Mathis
|0 P:(DE-HGF)0
|b 0
|e Corresponding author
245 _ _ |a Using Physics-Informed Super-Resolution Generative Adversarial Networks for Subgrid Modeling in Turbulent Reactive Flows
260 _ _ |c 2019
336 7 _ |a Preprint
|b preprint
|m preprint
|0 PUB:(DE-HGF)25
|s 1580209300_29129
|2 PUB:(DE-HGF)
336 7 _ |a WORKING_PAPER
|2 ORCID
336 7 _ |a Electronic Article
|0 28
|2 EndNote
336 7 _ |a preprint
|2 DRIVER
336 7 _ |a ARTICLE
|2 BibTeX
336 7 _ |a Output Types/Working Paper
|2 DataCite
500 _ _ |a Submitted to Combustion Symposium 2020
520 _ _ |a Turbulence is still one of the main challenges for accurately predicting reactive flows. Therefore, the development of new turbulence closures which can be applied to combustion problems is essential. Data-driven modeling has become very popular in many fields over the last years as large, often extensively labeled, datasets became available and training of large neural networks became possible on GPUs speeding up the learning process tremendously. However, the successful application of deep neural networks in fluid dynamics, for example for subgrid modeling in the context of large-eddy simulations (LESs), is still challenging. Reasons for this are the large amount of degrees of freedom in realistic flows, the high requirements with respect to accuracy and error robustness, as well as open questions, such as the generalization capability of trained neural networks in such high-dimensional, physics-constrained scenarios. This work presents a novel subgrid modeling approach based on a generative adversarial network (GAN), which is trained with unsupervised deep learning (DL) using adversarial and physics-informed losses. A two-step training method is used to improve the generalization capability, especially extrapolation, of the network. The novel approach gives good results in a priori as well as a posteriori tests with decaying turbulence including turbulent mixing. The applicability of the network in complex combustion scenarios is furthermore discussed by employing it to a reactive LES of the Spray A case defined by the Engine Combustion Network (ECN).
536 _ _ |a 512 - Data-Intensive Science and Federated Computing (POF3-512)
|0 G:(DE-HGF)POF3-512
|c POF3-512
|f POF III
|x 0
536 _ _ |a Using deep learning to predict statistics of turbulent flows at high Reynolds numbers (jhpc55_20180501)
|0 G:(DE-Juel1)jhpc55_20180501
|c jhpc55_20180501
|f Using deep learning to predict statistics of turbulent flows at high Reynolds numbers
|x 1
536 _ _ |a Direct Numerical Simulations of Fluid Turbulence at High Reynolds Numbers (sbda006_20151101)
|0 G:(DE-Juel1)sbda006_20151101
|c sbda006_20151101
|f Direct Numerical Simulations of Fluid Turbulence at High Reynolds Numbers
|x 2
588 _ _ |a Dataset connected to arXivarXiv
700 1 _ |a Gauding, Michael
|0 P:(DE-HGF)0
|b 1
700 1 _ |a Lian, Zeyu
|0 P:(DE-HGF)0
|b 2
700 1 _ |a Denker, Dominik
|0 P:(DE-HGF)0
|b 3
700 1 _ |a Davidovic, Marco
|0 P:(DE-HGF)0
|b 4
700 1 _ |a Kleinheinz, Konstantin
|0 P:(DE-HGF)0
|b 5
700 1 _ |a Jitsev, Jenia
|0 P:(DE-Juel1)158080
|b 6
|u fzj
700 1 _ |a Pitsch, Heinz
|0 P:(DE-HGF)0
|b 7
856 4 _ |u https://arxiv.org/abs/1911.11380
856 4 _ |u https://juser.fz-juelich.de/record/873125/files/1911.11380.pdf
|y OpenAccess
856 4 _ |u https://juser.fz-juelich.de/record/873125/files/1911.11380.pdf?subformat=pdfa
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|y OpenAccess
909 C O |o oai:juser.fz-juelich.de:873125
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910 1 _ |a RWTH Aachen
|0 I:(DE-588b)36225-6
|k RWTH
|b 0
|6 P:(DE-HGF)0
910 1 _ |a Forschungszentrum Jülich
|0 I:(DE-588b)5008462-8
|k FZJ
|b 6
|6 P:(DE-Juel1)158080
913 1 _ |a DE-HGF
|b Key Technologies
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|v Data-Intensive Science and Federated Computing
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|l Supercomputing & Big Data
914 1 _ |y 2019
915 _ _ |a OpenAccess
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920 _ _ |l yes
920 1 _ |0 I:(DE-Juel1)JSC-20090406
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980 _ _ |a preprint
980 _ _ |a VDB
980 _ _ |a UNRESTRICTED
980 _ _ |a I:(DE-Juel1)JSC-20090406
980 1 _ |a FullTexts


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