The lifetime $\ensuremath{\tau}$ of an isothermal and purely diffusively dissolving droplet in a host liquid scales as $\ensuremath{\tau}\ensuremath{\sim}{R}_{0}^{2}$ with its initial radius ${R}_{0}$. Here we experimentally find theoretically derive completely different dissolution behavior, resulting $\ensuremath{\tau}\ensuremath{\sim}{R}_{0}^{4}$. It occurs when the dynamics is controlled by...

The experimental method is used to study the droplet breaking characteristics of an immiscible liquid–liquid t8wo-phase fluid in symmetric Y-junction microchannels. Silicone oil as dispersed phase and distilled water containing 0.5% SDS continuous phase. Three breakup behaviors were observed: with permanent obstruction, gaps, no breakup. Two stages change neck width sub-droplet during process d...

Snap-off is a crucial mechanism for drop breakup in multiphase flow within porous media. However, the systematic investigation of snap-off dynamics constricted capillaries with varying pore and throat heights remains limited. In this study, we conducted three-dimensional simulations behavior square capillary non-uniform depth, employing color-gradient lattice Boltzmann model. Our analysis encom...

Among the all parameters affecting the performance of a downhole de-oiling hydrocyclone, the investigation of internal flow field deserves more attempts especially in the petroleum industry. In this study, the effects of inlet flow rate, inlet oil volume fraction, and oil droplet diameter on the separation efficiency and pressure drop ratio have been investigated along the hydrocyclone body. Al...

We show that the dynamical behavior of the 3D Ising spin glass with Gaussian couplings is not compatible with a droplet dynamics. We show that this is implied from the data of reference [1], that, when analyzed in an accurate way, give multiple evidences of this fact. Our study is based on the analysis of the overlap-overlap correlation function, at different values of the separation r and of t...