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Interface advection with the TAU code and the CICSAM method on arbitrary grids

Gauer, Markus und Hannemann, Klaus (2010) Interface advection with the TAU code and the CICSAM method on arbitrary grids. 7th International Conference on Multiphase Flow, May 30-June 4, 2010, Tampa, FL, USA.

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Kurzfassung

The DLR computational fluid dynamics code TAU is enhanced with the volume-of-fluid method (VOF) for a modelling of fluid interfaces. Within Tau the compressible Reynolds-Averaged-Navier-Stokes equations are discretized by a finite volume technique. TAU works with both structured as well as unstructured grids. In the pre-processing step the primary grid is split into control volumes, which are again subdivided into tetrahedra. These tetrahedra are cut with a predefined interface to initialize the volume-of-fluid distribution. Thus, the algorithms must be implemented to work efficient with both types of discretizations. For the advection of the interface the CICSAM method (Compressive Interface Capturing Scheme for Arbitrary Meshes) is employed which is far easier to implement when the code is desired to work on unstructured as well as structured grids than geometrical-based methods like PLIC. A further advantage of CICSAM when applied in the TAU code is the fact that the cell information of the primary grid is not explicitly needed. The method is implemented to work with the given dual grid control volume information. The performance of the interface advection is evaluated with the transport of a spherical distribution along the edges of a square grid and a rectangular one transported through an oblique, homogenous velocity field. The test cases are conducted on both structured as well as unstructured grids.

Dokumentart:Konferenzbeitrag (Vortrag, Paper)
Titel:Interface advection with the TAU code and the CICSAM method on arbitrary grids
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Gauer, Markusmarkus.gauer@dlr.de
Hannemann, Klausklaus.hannemann@dlr.de
Datum:Juni 2010
Referierte Publikation:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Seitenbereich:Seiten 1-9
Name der Reihe:Conference Proceedings on USB-Stick, Book of Abstracts
Status:veröffentlicht
Stichwörter:Volume-Of-Fluid, CICSAM, surface tension, interfacial modeling, multi-phase flow
Veranstaltungstitel:7th International Conference on Multiphase Flow
Veranstaltungsort:Tampa, FL, USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:May 30-June 4, 2010
Veranstalter :University of Florida
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W RP - Raumtransport
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W RP - Raumtransport
DLR - Teilgebiet (Projekt, Vorhaben):W - Leitprojekt - Forschungsverbund Oberstufe (alt)
Standort: Göttingen
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Raumfahrzeuge
Hinterlegt von: Markus Gauer
Hinterlegt am:16 Aug 2010 12:46
Letzte Änderung:16 Aug 2010 12:46

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