Article | Proceedings of the 10<sup>th</sup> International Modelica Conference; March 10-12; 2014; Lund; Sweden | Simulation of 2-dimensional flows in Modelica with the Casacaded Digital Lattice Boltzmann Method
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Title:
Simulation of 2-dimensional flows in Modelica with the Casacaded Digital Lattice Boltzmann Method
Author:
Thomas Bäuml: AIT Austrian Institute of Technology GmbH, Mobility Department, Electric Drive Technologies, Vienna, Austria Helmut Kühnelt: AIT Austrian Institute of Technology GmbH, Mobility Department, Electric Drive Technologies, Vienna, Austria
DOI:
10.3384/ecp140961221
Download:
Full text (pdf)
Year:
2014
Conference:
Proceedings of the 10th International Modelica Conference; March 10-12; 2014; Lund; Sweden
Issue:
096
Article no.:
129
Pages:
1221-1226
No. of pages:
6
Publication type:
Abstract and Fulltext
Published:
2014-03-10
ISBN:
978-91-7519-380-9
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press; Linköpings universitet


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This paper deals with the implementation of a general methodology for modeling 2D fluid flows in Modelica applying the Cascaded Digital Lattice Boltzmann Method. This approach models fluid flow as collective dynamics of fictitious particles on the nodes of a regular lattice. The various elements needed for simulation are described in Modelica and generic test cases are set up. The method is able to deal with simple scenarios where the powerful capabilities of advanced CFD tools are not needed.

Keywords: Modelica; Cascaded Digital Lattice Boltzmann; 2-dimensional flows

Proceedings of the 10th International Modelica Conference; March 10-12; 2014; Lund; Sweden

Author:
Thomas Bäuml, Helmut Kühnelt
Title:
Simulation of 2-dimensional flows in Modelica with the Casacaded Digital Lattice Boltzmann Method
DOI:
http://dx.doi.org/10.3384/ecp140961221
References:

[1] M. Bonvini, M.; Popovac, “Fluid flow modelling with Modelica,” Proceedings of the 7th International Conference on Mathematical Modelling, Vienna, Austria, 2012.


[2] D. D’Humieres, “Generalized lattice-Boltzmann equations,” Rarefied Gas Dynamics: Theory and Simulations, vol. 159, pp. 450–458, 1992.


[3] P. Lallemand and L.-S. Luo, “Theory of the lattice Boltzmann method: Dispersion, dissipation, isotropy, Galilean invariance, and stability,” Phys. Rev. E, vol. 61, pp. 6546–6562, Jun 2000.


[4] M. Geier, J. G. Korvink, and A. Greiner, “Cascaded digital lattice Boltzmann automata for high Reynolds number flow,” PHYSICAL REVIEW E 73, 2006.


[5] J. Brown, “Computational fluid dynamics in an equation-based, acausal modeling environment,” Master’s thesis, Atlanta, Ga. : Georgia Institute of Technology, 2010.


[6] Q. Zou and X. He, “On pressure and velocity boundary conditions for the lattice Boltzmann BGK model,” Physics of Fluids, vol. 9, no. 6, pp. 1591–1598, Jun. 1997.

Proceedings of the 10th International Modelica Conference; March 10-12; 2014; Lund; Sweden

Author:
Thomas Bäuml, Helmut Kühnelt
Title:
Simulation of 2-dimensional flows in Modelica with the Casacaded Digital Lattice Boltzmann Method
DOI:
http://dx.doi.org/10.3384/ecp140961221
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