2005
DOI: 10.1016/j.powtec.2005.05.054
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Research developments in pipeline transport of settling slurries

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Cited by 49 publications
(35 citation statements)
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References 13 publications
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“…This improved agreement is more notorious for the highest flow velocities, which is the area of interest, since for 5 m/s there is a similarity between this pressure drop and the monophasic pressure drops (the region where turbulence attenuation is expected as explained in the literature (Lahiri & Ghanta, 2010;Tanaka & Eaton, 2008). A possible explanation for this phenomenon is related with lift-forces resulting from the viscousturbulent interface at the bottom layer of particles closest to the pipe wall (Kaushal & Tomita, 2007;Matoušek, 2005).…”
Section: Concentrated Solid-liquid Settling Suspensions Flow In a Hormentioning
confidence: 63%
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“…This improved agreement is more notorious for the highest flow velocities, which is the area of interest, since for 5 m/s there is a similarity between this pressure drop and the monophasic pressure drops (the region where turbulence attenuation is expected as explained in the literature (Lahiri & Ghanta, 2010;Tanaka & Eaton, 2008). A possible explanation for this phenomenon is related with lift-forces resulting from the viscousturbulent interface at the bottom layer of particles closest to the pipe wall (Kaushal & Tomita, 2007;Matoušek, 2005).…”
Section: Concentrated Solid-liquid Settling Suspensions Flow In a Hormentioning
confidence: 63%
“…In his studies, the following conclusion was attained "small particles will attenuate the turbulence while large particles will generate turbulence" (Crowe, Troutt & Chung, 1996). And while this seems to hold true for gassolid and gas-liquid suspensions flows, recent studies (Kaushal et al, 2012;Lahiri & Ghanta, 2010;Matoušek, 2005) seem to contradict this statement for solid-liquid settling suspensions flows. In fact, quite the opposite seems to be the case for solid-liquid settling suspensions but only for highly concentrated solids volumetric fractions.…”
Section: Turbulence Modulationmentioning
confidence: 98%
“…Advanced knowledge of the flow behaviour coarse-grained and complex slurries is therefore important for the safe, reliable and economical design and operation of pipeline technology. The preferred predictive tools are models based on the physical description of slurry flow behaviour in a pipeline (Matousek, 2005).…”
Section: Introductionmentioning
confidence: 99%
“…Sabe-se que quando a turbulência difusiva do fl uido de transporte (geralmente água) for insufi ciente para manter as partículas sólidas não-coloidais em suspensão, haverá sedimentação no fundo da tubulação. Uma polpa com tendência à sedimentação tende a estratifi car sob fl uxo em dutos horizontais e inclinados, nas vazões usuais empregadas nesse tipo de operação, ou seja, ocorre uma distribuição não-uniforme das partículas -um gradiente de concentração -ao longo da seção transversal do duto (Matousek, 2005). O fl uxo é considerado estratifi cado quando uma certa quantidade de sólidos forma um leito granular, que pode ser estacionário ou deslizante.…”
Section: Introductionunclassified