Immersed boundary methods

Immersed boundary methods

The solvers for incompressible and compressible flows have support for including moving immersed boundaries given by the zero iso-contour of a level set function.

Inviscid flow over a Gaussian bump

by: Stephan Krämer-Eis, M.Sc.

First order DG
First order DG
Fourth order DG
Fourth order DG

Our tests indicate that the resulting DG schemes of order Pconverges with the optimal rate hP+1 for smooth geometries. On the right, convergence results for the L2 entropy error under grid refinement for different DG degrees P are shown.

Müller, Björn ; Krämer-Eis, Stephan ; Kummer, Florian ; Oberlack, Martin (2017):
A high-order Discontinuous Galerkin method for compressible flows with immersed boundaries.
In: International Journal for Numerical Methods in Engineering, S. 3-30, 110, (1), ISSN 0029-5981,
[Online-Edition: http://doi.org/10.1002/nme.5343],
[Article]

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Vortex shedding behind an immersed cylinder

by: Stephan Krämer-Eis, M.Sc.

Vortex shedding behind a cylinder (Re = 100, Ma = 0.2, DG degree is 4)

Müller, Björn ; Krämer-Eis, Stephan ; Kummer, Florian ; Oberlack, Martin (2017):
A high-order Discontinuous Galerkin method for compressible flows with immersed boundaries.
In: International Journal for Numerical Methods in Engineering, S. 3-30, 110, (1), ISSN 0029-5981,
[Online-Edition: http://doi.org/10.1002/nme.5343],
[Article]

go to TU-biblio search on ULB website

Immersed oscillating cylinder in incompressible flow

by: Dennis Krause, M.Sc.

Vortex shedding behind an oscillating cylinder that is immersed into a constant background flow

Krause, Dennis ; Kummer, Florian ; Oberlack, Martin (2017):
Challenges of extending a Discontinuous Galerkin cut cell immersed boundary method to three dimensions.
In: XIX International Conference on Finite Elements in Flow Problems (FEF 2017), Rome, Italy, April 5 - 7, 2017, [Online-Edition: http://congress.cimne.com/FEF2017/admin/files/fileabstract/a...],
[Konferenzveröffentlichung]

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Particle under gravity

by: Dennis Krause, M.Sc.

Falling particle in an incompressible medium

Krause, Dennis ; Kummer, Florian ; Oberlack, Martin (2017):
Challenges of extending a Discontinuous Galerkin cut cell immersed boundary method to three dimensions.
In: XIX International Conference on Finite Elements in Flow Problems (FEF 2017), Rome, Italy, April 5 - 7, 2017, [Online-Edition: http://congress.cimne.com/FEF2017/admin/files/fileabstract/a...],
[Konferenzveröffentlichung]

go to TU-biblio search on ULB website