Comparison between smoothed dissipative particle dynamics and Voronoi fluid particle model in a shear stationary flow

Mar Serrano

Physica A: Statistical Mechanics and its Applications, 2006, vol. 362, issue 1, 204-209

Abstract: We present a numerical comparison between two Lagrangian techniques for the simulation of fluids, smoothed dissipative particle dynamics (SDPD) and Voronoi fluid particle model. These methods reproduce the movement of the fluid with extensive particles. The main differences between these techniques are the volume definition and the implementation of the second derivatives. The Voronoi model is computationally more efficient than SDPD. For quasi-regular meshes, the Voronoi method is more accurate than SDPD but for arbitrary configurations its precision degrades. This means that the SDPD discrete versions of the second derivative operators are better than the ones used in the Voronoi method.

Keywords: Navier–Stokes; Lagrangian; Unstructured grids; Discrete operators (search for similar items in EconPapers)
Date: 2006
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:362:y:2006:i:1:p:204-209

DOI: 10.1016/j.physa.2005.09.024

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