Numerical Investigation Of Non-Newtonian Emulsion Formation At Microfluidics T-Junction
The main focus of the present study is the parametric investigation of the influence of viscosity on breakup dynamics of the non-Newtonian sodium carboxymethylcellulose (CMC) droplets. It presents the numerical simulations of the fluid dynamics of CMC droplets with shear-thinning properties in an immiscible liquid-liquid system. Computational fluid dynamics (CFD) path is adopted as opposed to a large number of experiments to examine the sensitivity of the viscosities of both dispersed and continuous phases to the formation of droplets and their size distributions. A well-known Carreau-Yasuda rheological model is incorporated with a two-phase conservative Level-Set (LS) approach to capture the shear-thinning droplet breakup dynamics and fluid-fluid interface tracking in present study. This was achieved using the COMSOL implementation of the LS method from CFD Module.
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