Review of Visualization of Flow and Dispersion States of Slurry System Fluids in Stirred Vessels

Abstract

The author starts by reviewing papers regarding studies of solid-liquid mixing and dispersion states, essential for slurry uid mixing, by both experimental and numerically analytical approaches, and subsequently reviews papers regarding visualization of the cavern and the ow state of slurry system uids by CFD and ERT, as it is impossible to use an optical visualization approach for such uids because they are usually opaque and non-light-transmitting.

Experimental study on the mixing and dispersing of floating particles in viscous system

“…Most scholars investigated the critical drawdown speed and power by the visual method of Joosten . It determined the critical state when stagnant floating particles at the liquid surface just disappear within 1–2 s. Some scholars used computer‐aided optical methods or electrical resistance tomography to analyze the distribution of particles . Additionally, other scholars investigated the drawdown and dispersing of floating particles by simulation …”

“…[3] It determined the critical state when stagnant floating particles at the liquid surface just disappear within 1-2 s. Some scholars used computer-aided optical methods or electrical resistance tomography to analyze the distribution of particles. [16,17] Additionally, other scholars investigated the drawdown and dispersing of floating particles by simulation. [16,[18][19][20] Although the above-mentioned references analyzed the effects of different factors on the solid-liquid mixing of floating particles, they all adopted water as the liquid phase and took no account of the influence of the material viscosity.…”

Models and Applications for Simulating Turbulent Solid–Liquid Suspensions in Stirred Tanks

“…The current paper complements the recent review by Kaminoyama (2014) that discusses visualization of flow phenomena in agitated slurry vessels. The focus of the latter paper is on the use of CFD (as well as Electrical Resistance Tomography (ERT)) for elucidation of flow structures in optically inaccessible slurry systems, whereas the emphasis of the present paper is on the level of realism that can be achieved in CFD simulations of stirred solid-liquid suspensions and how this level relates to various computational approaches for turbulent multiphase flow.…”

Visualization of Horizontal Settling Slurry Flow Using Electrical Resistance Tomography

“…The transportation of settling slurry flow is required in a variety of industries, such as mining, nuclear, energy, pharmaceutical, chemical and food industries [1][2][3][4]. Especially in some specific applications, hydraulic transport through pipes is the only way to transport solid particles.…”