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Baars, Sven and van der Klok, Mark and Thies, Jonas and Wubs, Fred W. (2020) A Staggered Grid Multi-Level ILU for steady incompressible flows. International Journal for Numerical Methods in Fluids. Wiley. doi: 10.1002/fld.4913. ISSN 0271-2091.
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Official URL: https://onlinelibrary.wiley.com/doi/epdf/10.1002/fld.4913
Abstract
We present a parallel fully coupled multi-level incomplete factorization preconditioner for the 3D stationary incompressible Navier-Stokes equations on a structured grid. The algorithm and software are based on the robust two-level method developed in [1]. In this paper, we identify some of the weak spots of the two-level scheme and propose remedies such as a different domain partitioning and recursive application of the method. We apply the method to the wellknown 3D lid-driven cavity benchmark problem, and demonstrate its superior robustness by comparing with a segregated SIMPLE-type preconditioner.
| Item URL in elib: | https://elib.dlr.de/137927/ | |||||||||||||||
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| Document Type: | Article | |||||||||||||||
| Title: | A Staggered Grid Multi-Level ILU for steady incompressible flows | |||||||||||||||
| Authors: |
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| Date: | 2020 | |||||||||||||||
| Journal or Publication Title: | International Journal for Numerical Methods in Fluids | |||||||||||||||
| Refereed publication: | Yes | |||||||||||||||
| Open Access: | Yes | |||||||||||||||
| Gold Open Access: | No | |||||||||||||||
| In SCOPUS: | Yes | |||||||||||||||
| In ISI Web of Science: | Yes | |||||||||||||||
| DOI: | 10.1002/fld.4913 | |||||||||||||||
| Publisher: | Wiley | |||||||||||||||
| ISSN: | 0271-2091 | |||||||||||||||
| Status: | Published | |||||||||||||||
| Keywords: | Parallel, incomplete factorization, multi-level, incompressible Navier-Stokes, F-matrix, lid-driven cavity | |||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | |||||||||||||||
| HGF - Program: | Space | |||||||||||||||
| HGF - Program Themes: | Space System Technology | |||||||||||||||
| DLR - Research area: | Raumfahrt | |||||||||||||||
| DLR - Program: | R SY - Space System Technology | |||||||||||||||
| DLR - Research theme (Project): | R - Vorhaben SISTEC (old) | |||||||||||||||
| Location: | Köln-Porz | |||||||||||||||
| Institutes and Institutions: | Institut of Simulation and Software Technology > High Performance Computing Institut of Simulation and Software Technology | |||||||||||||||
| Deposited By: | Thies, Jonas | |||||||||||||||
| Deposited On: | 24 Nov 2020 13:43 | |||||||||||||||
| Last Modified: | 17 Dec 2020 09:55 |
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