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020 _ _ |a 978-3-031-63785-8 (print)
020 _ _ |a 978-3-031-63783-4 (electronic)
024 7 _ |a 10.1007/978-3-031-63783-4_4
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024 7 _ |a 0302-9743
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024 7 _ |a 1611-3349
|2 ISSN
024 7 _ |a 10.34734/FZJ-2024-06445
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024 7 _ |a WOS:001279329400004
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037 _ _ |a FZJ-2024-06445
041 _ _ |a English
100 1 _ |a Ouardghi, Abdelouahed
|0 P:(DE-Juel1)194959
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111 2 _ |a 24th International Conference on Computational Science
|g ICCS2024
|c Malaga
|d 2024-07-02 - 2024-07-04
|w Spain
245 _ _ |a A Backward-Characteristics Monotonicity Preserving Method for Stiff Transport Problems
250 _ _ |a 24th ed
260 _ _ |a Heidelberg
|c 2024
|b Springer
300 _ _ |a 33 - 47
336 7 _ |a CONFERENCE_PAPER
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336 7 _ |a Conference Paper
|0 33
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336 7 _ |a INPROCEEDINGS
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490 0 _ |a Lecture Notes in Computer Science
|v 14838
520 _ _ |a Convection-diffusion problems in highly convective flows can exhibit complicated features such as sharp shocks and shear layers which involve steep gradients in their solutions. As a consequence, developing an efficient computational solver to capture these flow features requires the adjustment of the local scale difference between convection and diffusion terms in the governing equations. In this study, we propose a monotonicity preserving backward characteristics scheme combined with a second-order BDF2-Petrov-Galerkin finite volume method to deal with the multiphysics nature of the problem. Unlike the conventional Eulerian techniques, the two-step backward differentiation procedure is applied along the characteristic curves to obtain a second-order accuracy. Numerical results are presented for several benchmark problems including sediment transport in coastal areas. The obtained results demonstrate the ability of the new algorithm to accurately maintain the shape of the computed solutions in the presence of sharp gradients and shocks.
536 _ _ |a 5112 - Cross-Domain Algorithms, Tools, Methods Labs (ATMLs) and Research Groups (POF4-511)
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588 _ _ |a Dataset connected to CrossRef Book Series, Journals: juser.fz-juelich.de
700 1 _ |a asmouh, ilham
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770 _ _ |z 978-3-031-63785-8=978-3-031-63783-4
773 _ _ |a 10.1007/978-3-031-63783-4_4
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856 4 _ |u https://link.springer.com/chapter/10.1007/978-3-031-63783-4_4
856 4 _ |u https://juser.fz-juelich.de/record/1033565/files/978-3-031-63783-4_4.pdf
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