During the production of fine metal powder using vacuum induction melting gas atomization (VIGA) technology, problem nozzle clogging is often encountered. The viscosity melt one key factors causing nozzle. To visualize mechanism nozzle, volume fluid (VOF) model combined with large eddy turbulence was used to simulate nozzle-clogging process an alloy in primary zone. results show that, increase ...

A study of the filtration behaviour of contaminated wastewater treatment sludges was conducted. The laboratory portion of the study included a series of filtration tests with different nonwoven geotextiles. Filtration performance of the sludge–nonwoven-geotextile systems was also observed in field test cells by exhuming geotextile samples from the cells after exposure followed by analysis. The ...

Permeable pavements are a type of sustainable urban drainage system (SUDS) technique that are used around the world to infiltrate and treat urban stormwater runoff and to minimize runoff volumes. Urban stormwater runoff contains significant concentrations of suspended sediments that can cause clogging and reduce the infiltration capacity and effectiveness of permeable pavements. It is important...

A gentle, but fast means for low-stress, high-throughput platelet purification is of significant clinical and biotechnological utility. Current implementations to sort platelets, however, require an external physical field, specialized buffer, or the harsh separation condition of high shear stress that tends to cause platelet stimulation. Here we report the use of hydrophoretic size separation ...

In this study, reaction-induced boundary movements in a thin channel are investigated. Here, precipitation-dissolution reactions taking place at the boundaries of the channel resulting in boundary movements act as a precursor to the clogging process. The resulting problem is a coupled ow-reactive transport process in a time-dependent geometry. We propose an ALE-based method (ALE arbitrary Lagra...

Surface roughness plays a key role in the clogging of dense suspensions.

Continuous casting (CC) is nowadays the world‐leading technology for steel production. The thin slab (TSC) featured by a shape close to final products and high speed. quality of slabs strongly depends on uniformity turbulent flow superheat distribution, defining solid shell growth against funnel‐shaped mold. In most studies, it commonly assumed that submerged entry nozzle (SEN) properly arrange...