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| Titel |
An accurate and efficient scheme for micro scale simulations of multi phase flow |
| VerfasserIn |
Felix Heimann, Christian Engwer, Olaf Ippisch, Peter Bastian |
| Konferenz |
EGU General Assembly 2010
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 12 (2010) |
| Datensatznummer |
250039002
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| Zusammenfassung |
| Pore scale simulations of multi phase flow in porous media present a promising
approach in the development and verification of continuum scale models as well as in
the understanding of the underlying processes of flow phenomena like hysteresis
or the peculiarities of the capillary fringe. However, the applicability of modern
numerical models is still significantly restricted by the vast computational effort
related with complicated geometric domains that comprise at least a representative
volume element. This implies both a minimum domain size and a minimum spatial
resolution.
We present an unfitted discontinuous Galerkin discretization scheme for multi phase flow
which allows the solution of the Navier Stokes equations within multiple transient domains.
The support of the base functions is restricted to the domain boundaries which allows an
accurate representation of both pressure and velocity interface conditions along the interface
boundaries. The creation of the triangulation geometries is both highly efficient and
sufficiently accurate to allow the simulation of surface tension forces depending on the
interface curvature. |
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