Simulation of Suspensions in Constricted Geometries by Dissipative Particle Dynamics.

Autor: Darias, J.R., Quiroga, M., Medina, E., Colmenares, P.J., Paredes V., R.
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Zdroj: Molecular Simulation; Jun2003, Vol. 29 Issue 6/7, p443, 7p
Abstrakt: We investigate the flow of a suspension through a constriction by means of the mesoscopic technique known as dissipative particle dynamics (DPD). The dispersed phase was modeled as a set of soft spheres interacting through a conservative force while suspended and continuum phases interact via DPD forces. It is shown that a Poiseuille steady state is achieved in the presence of bounding walls and under a pressure gradient in a cylindrical pipe. Flow geometry in the laminar regime is explored and discussed for periodic conditions in the presence of a cylindrical narrowing or constriction. [ABSTRACT FROM AUTHOR]
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