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[The European Physical Journal E] Numerical simulation and scaling of droplet deformation in a hyper


Motivated by a recent experiment (C. Ulloa et al., Phys. Rev. E 89, 033004 (2014)), droplet deformation in a flat microfluidic channel having a cross intersection with two inlet channels and two outlet channels, i.e. hyperbolic flow, is numerically investigated. Employing the boundary element method (BEM), we numerically solve the Darcy equation in the two dimensions and investigate droplet motion and droplet deformation as the droplet enters the cross intersection. We numerically find that the maximum deformation of droplet depends on droplet size, capillary number, viscosity ratio and flow rate ratio of the two inlets. Our numerical scaling is in good agreement with the experimental scaling report.

Erfan Kadivar, Atefeh Alizadeh Regular Article First Online: 23 March 2017 DOI: 10.1140/epje/i2017-11521-9 Cite this article as: Kadivar, E. & Alizadeh, A. Eur. Phys. J. E (2017) 40: 31. doi:10.1140/epje/i2017-11521-9

Link: https://link.springer.com/article/10.1140%2Fepje%2Fi2017-11521-9

#03232017 #physics #simulation #deformation #hyperbolic #capillary #viscosity

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