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@INPROCEEDINGS{Ouardghi:1033565,
author = {Ouardghi, Abdelouahed and asmouh, ilham},
title = {{A} {B}ackward-{C}haracteristics {M}onotonicity
{P}reserving {M}ethod for {S}tiff {T}ransport {P}roblems;
24th ed},
volume = {14838},
issn = {0302-9743},
address = {Heidelberg},
publisher = {Springer},
reportid = {FZJ-2024-06445},
isbn = {978-3-031-63785-8 (print)},
series = {Lecture Notes in Computer Science},
pages = {33 - 47},
year = {2024},
abstract = {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.},
month = {Jul},
date = {2024-07-02},
organization = {24th International Conference on
Computational Science, Malaga (Spain),
2 Jul 2024 - 4 Jul 2024},
cin = {JSC},
cid = {I:(DE-Juel1)JSC-20090406},
pnm = {5112 - Cross-Domain Algorithms, Tools, Methods Labs (ATMLs)
and Research Groups (POF4-511)},
pid = {G:(DE-HGF)POF4-5112},
typ = {PUB:(DE-HGF)8 / PUB:(DE-HGF)7},
UT = {WOS:001279329400004},
doi = {10.1007/978-3-031-63783-4_4},
url = {https://juser.fz-juelich.de/record/1033565},
}