PhD Position in Microfluidic Non-Newtonian Droplets Generation: Experiments and Numerical Simulations

il y a 19 heures


Paris, Île-de-France Groupe Français de Rhéologie Temps plein

PhD Position in Microfluidic Non-Newtonian Droplets Generation: Experiments and Numerical Simulations

Context

Microfluidics is a field of science and technology that deals with the manipulation and processing of small amounts of fluids within channels with dimensions of 10μm to 100μm. One of its essential applications concerns the fabrication of micrometric objects (so-called microparticles) via stretching and breakup of non-Newtonian fluids in a flow-focusing microchannel.

Problematic

The fabrication of microparticles via microfluidics involves the stretching and subsequent breakup of non-Newtonian fluids at very high strain-rate levels, a fluid mechanics' problem that remains unclear up to now. Lacking a priori fundamental physical understanding of such a problem, the control of the above applications is often done by trial-and-error, and consequently it is far from optimal.

Objective

The current project aims to highlight the physical mechanisms driving the formation of microparticles via stretching and breakup of non-Newtonian fluids in an axisymmetric flow-focusing configuration. It will be conducted using a mixed approach combining experiments and numerical simulations. The results will be analysed in light of filament stretching dynamics, energy transfer, and scaling laws.

Requirements

We are seeking a highly motivated PhD researcher interested in developing a mixed experimental-numerical profile in Fluid Mechanics to join our project. The former will be developed at the CFL Research Group at CEMEF, Mines Paris - PSL, which is ideally positioned to pursue this objective, as it gathers experts on numerical and experimental Fluid Mechanics. Furthermore, this research will be grounded on a solid collaboration with industrial and academic European partners.



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