Development of a code for the direct numerical simulation of particles detaching from solid walls by hydrodynamical forces

Lechner, Christiane; Kuhlmann, Hendrik

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Record link:

http://hdl.handle.net/20.500.12708/66079

Title:

Development of a code for the direct numerical simulation of particles detaching from solid walls by hydrodynamical forces

Citation:

Lechner, C., & Kuhlmann, H. (2010). Development of a code for the direct numerical simulation of particles detaching from solid walls by hydrodynamical forces. In M. Sommerfeld (Ed.), Proceedings of the 12th Workshop on Two-Phase Flow Predictions. http://hdl.handle.net/20.500.12708/66079

CatalogPlus:

AC17502350

Publication Type:

Inproceedings - Full-Paper Contribution

Language:

English

Authors:

Lechner, Christiane
Kuhlmann, Hendrik

Organisational Unit:

E322-02 - Forschungsbereich Numerische Strömungsmechanik

Published in:

Proceedings of the 12th Workshop on Two-Phase Flow Predictions

Date (published):

2010

Event name:

12th Workshop on Two-Phase Flow Predictions

Event date:

22-Mar-2010 - 25-Mar-2010

Event place:

Halle, Germany

Number of Pages:

Keywords:

finite-volume method; Navier-Stokes equations; Immersed-boundary method; direct forcing; OpenFOAM; particulate flow

Abstract:

We report on our current progress in developing a code to be applied in the context of the cleaning of wafer surfaces by hydromechanical forces. Our goal is to study the detachment of (submicron) particles, exposed to a shear flow, from a wall by means of direct numerical simulation. The particles will be treated as rigid bodies with a two-way interaction with the fluid. Our software is based on OpenFOAM. Following Uhlmann (2005) and Taira(2007) we implement an immersed boundary method with direct forcing. The interpolation between the fixed Eulerian grid and the Lagrangian marker points is performed with the regularized delta-function introduced by Peskin( 2002). For the time being we implemented this approach in 2D using OpenFOAM's standard solver icoFoam to solve the incompressible Navier-Stokes equations. To validate the implementation we present results on standard benchmark tests of the flow around a cylinder with prescribed motion.

Science Branch:

Physik, Mechanik, Astronomie
Mathematik, Informatik

License:

In Copyright

Appears in Collections:

Conference Paper