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Communication Dans Un Congrès Année : 2010

BEHAVIOR OF FLOWING BODIES NEAR A BIFURCATION: ELUCIDATING THE ZWEIFACH-FUNG EFFECT

Résumé

The problem of the splitting of a suspension in bifurcating channels dividing into two branches of non equal flow rates is addressed. As observed for long, in particular in blood flow studies, the volume fraction of particles generally increases in the high flow rate branch and decreases in the other one. We focus here on the possibility of an attraction of the particles towards one branch through microfluidic experiments and two-dimensional simulations and show that it is directed towards the low flow rate branch. The enrichment in particles in the high flow rate branch is shown to be mainly a consequence of the initial distribution in the inlet branch, which shows necessarily some depletion near the walls.
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Dates et versions

hal-00666041 , version 1 (03-02-2012)

Identifiants

  • HAL Id : hal-00666041 , version 1

Citer

Vincent Doyeux, Thomas Podgorski, Sarah Peponas, Mourad Ismail, Gwennou Coupier. BEHAVIOR OF FLOWING BODIES NEAR A BIFURCATION: ELUCIDATING THE ZWEIFACH-FUNG EFFECT. 2nd European Conference on Microfluidics, Dec 2010, Toulouse, France. pp.1-17. ⟨hal-00666041⟩
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