A LATTICE BOLTZMANN SIMULATION OF THE RHONE RIVER

Andrea Parmigiani, Jonas Latt (), Mohamed Ben Begacem and Bastien Chopard
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Andrea Parmigiani: University of Geneva, Switzerland
Jonas Latt: University of Geneva, Switzerland
Mohamed Ben Begacem: University of Geneva, Switzerland
Bastien Chopard: University of Geneva, Switzerland

International Journal of Modern Physics C (IJMPC), 2013, vol. 24, issue 12, 1-8

Abstract: We present a very detailed numerical simulation of the Rhone river in the Geneva area, using a Lattice Boltzmann (LB) modeling approach. The simulations of water ways are important to better predict and control their behavior when subject to exceptional event or new management strategies. Here, we investigate the current computing limits of using a three-dimensional (3D), free surface model to simulate a high resolution flow over a long section of the river, on a massively parallel computer. We argue that in a near future, computers will be powerful enough to tackle such a simulation. We also compare our results with a two-dimensional (2D) shallow water model to determine in which range a 3D free surface approach provides better insights. Finally, we discuss the advantage of a multi-scale approach for this type of problems.

Keywords: Lattice Boltzmann method; 3D free surface flow simulations; shallow water simulations; Rhone river; 07.05.Tp; 92.40.–t; 92.40.Gc; 47.85.–g (search for similar items in EconPapers)
Date: 2013
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DOI: 10.1142/S0129183113400081

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