Suspended particles flowing through complex porous spaces exhibit clogging mechanisms determined by factors including their size, deformability, and the geometry of confinement. This study describes rigid in a microfluidic device made up parallel microchannels that taper from inlet to outlet, where constriction width is approximately equal particle size. converging summarizes dynamics flow channels with constrictions narrow over multiple length scales. Our novel approach allows investigation...

In suspension flows through microchannels with parallel walls, rigid colloidal particles form clogs that grow continuously in the upstream direction. However, introducing a slight taper to channel walls leads qualitatively different clogging mechanism. Clogs of do not these tapered pores. Instead, new are initiated pre-existing clogs, truncating their growth and thereby creating multiple distinct within channel. We refer this novel phenomenon as discontinuous clogging. Here, we investigate...

Colloidal clogging is typically studied in pores with constrictions arranged parallel or series. In these systems, statistics are governed by Poisson processes; the time interval between events exhibits an exponential distribution. However, entirely different phenomenon observed a gently tapered pore geometry. Unlike non-tapered constrictions, rigid particles microchannels form discrete and discontinuous clogs. parallelized system of microchannels, we analyze distributions clog dimensions...

In suspension flows through microchannels with parallel walls, rigid particles form clogs that grow continuously in the upstream direction. However, introducing a slight taper to channel walls leads qualitatively different clogging mechanism. Clogs of do not these tapered pores. Instead, new pre-existing clogs, truncating their growth, and thereby creating multiple distinct within channel. We refer this novel phenomenon as discontinuous clogging. Here, we investigate its features by...

Method to inhibit CaCO 3 growth and synthesize submicron particles in a chemical precipitation process under ambient high supersaturation conditions.

Abstract Colloidal clogging is typically studied in pores with constrictions arranged parallel or series. In these systems, statistics are governed by Poisson processes; the time interval between events exhibits an exponential distribution. However, entirely different phenomenon observed a gently tapered pore geometry. Unlike non-tapered constrictions, rigid particles microchannels form discrete and discontinuous clogs. parallelized system of microchannels, we analyze distributions clog...

CaCO3 particles grow excessively upon chemical precipitation in the absence of impurities or growth inhibitors. Additive Ca2+ ions have been shown to preferentially adsorb on precipitates, effectively inhibiting their and promoting crystallization pure calcite without an observable intermediate phase. This phenomenon can be adapted towards synthesis small from a conventional method. Complementing such effort, this study discusses influence additive concentration solution pH extent...

Abstract Colloidal clogging is typically studied in pores with constrictions arranged parallel or series. In these systems, statistics are governed by Poisson processes; the time interval between events exhibits an exponential distribution. However, entirely different phenomenon observed a gently tapered pore geometry. Unlike non-tapered constrictions, rigid particles microchannels form discrete and discontinuous clogs. parallelized system of microchannels, we analyze distributions clog...

Abstract Suspended particles flowing through complex porous spaces exhibit clogging mechanisms determined by factors including their size, deformability, and the geometry of confinement. This study describes rigid in a microfluidic device made up parallel microchannels which taper from inlet to outlet, where constriction width is approximately equal particle size. summarizes dynamics flow channels with constrictions that narrow over multiple length scales. Flow tests are conducted at...