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| - | '''FeatFlow''' (for "Finite Element Analysis Toolbox for Flow") is a free and open-source high-performance [[computational fluid dynamics]] [[Fortran]] CFD code solving the incompressible [[Navier–Stokes equations]] in two and three dimensions.
| + | [http://www.featflow.de/en/index.html FeatFlow Homepage] |
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| - | Unique for CFD and FEM codes, FeatFlow employs a [[finite element]] discretization with rotated non-conforming <math>\overset{\sim}{Q}_1Q_0</math> basis functions<ref>{{cite journal|url=http://doi.org/10.1002/num.1690080202 |title=Simple nonconforming quadrilateral Stokes element |journal=Numerical Methods for Partial Differential Equations |volume=8 |issue=2 |pages=97–111 |year=1992}}</ref> which coupled with a geometric [[Multigrid method|multigrid]] approach enables very high performance<ref>{{cite book|url=https://www.springer.com/us/book/9783642635731 |title=Efficient Solvers for Incompressible Flow Problems, Series: Lecture Notes in Computational Science and Engineering |volume=6 |publisher=Springer-Verlag |year=1999 |ISBN=978-3-642-58393-3}}</ref>. Several numerical benchmarking projects have compared FeatFlow in CFD benchmarks with other academic and commercial CFD codes such as [[OpenFOAM]], [[ANSYS CFX|CFX]], [[Comsol]], and [[ANSYS|Fluent]], where it has been shown that FeatFlow can be significantly faster and more efficient, computing a more accurate solution in less CPU time for some flows<ref>{{cite journal|url=http://www.inderscience.com/offer.php?id=48245 |title=Benchmark Computations of 3D Laminar Flow Around a Cylinder with CFX, OpenFOAM and FeatFlow |journal=International Journal of Computational Science and Engineering |volume=7 |issue=3 |pages=253–266 |year=2012}}</ref><ref>{{cite journal|url=http://www.mathematik.tu-dortmund.de/lsiii/cms/papers/FengKoesterZhang2005.pdf |title=Cylinder Flow Benchmark with Commercial Software Package - A Comparative Study |journal=Ergebnisberichte des Instituts für Angewandte Mathematik |volume=287 |year=2005}}</ref>.
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| - | == References ==
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| - | [1] "FeatFlow source code and development repository" http://www.featflow.de
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| - | [2] "Simple nonconforming quadrilateral Stokes element". Numerical Methods for Partial Differential Equations. 8 (2): 97–111. 1992.
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| - | [3] Efficient Solvers for Incompressible Flow Problems, Series: Lecture Notes in Computational Science and Engineering. 6. Springer-Verlag. 1999. ISBN 978-3-642-58393-3.
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| - | [4] "Benchmark Computations of 3D Laminar Flow Around a Cylinder with CFX, OpenFOAM and FeatFlow". International Journal of Computational Science and Engineering. 7 (3): 253–266. 2012.
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| - | [5] "Cylinder Flow Benchmark with Commercial Software Package - A Comparative Study" (PDF). Ergebnisberichte des Instituts für Angewandte Mathematik. 287. 2005.
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| - | [[Category:Fortran]]
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| - | [[Category:Fortran software]]
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| - | [[Category:Computational fluid dynamics]]
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| - | [[Category:Computer-aided engineering software]]
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| - | [[Category:Computer-aided engineering software for Linux]]
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| - | [[Category:Continuum mechanics]]
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| - | [[Category:Finite element software]]
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| - | [[Category:Finite element software for Linux]]
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| - | [[Category:Fluid dynamics]]
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| - | [[Category:Free science software]]
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| - | [[Category:Free software programmed in Fortran]]
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| - | [[Category:Free software]]
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| - | [[Category:Linux-only software]]
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| - | [[Category:Open Source computer aided engineering applications]]
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| - | [[Category:Scientific simulation software]]
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