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International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.9

ISSN Imprimir: 2152-5102
ISSN En Línea: 2152-5110

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International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v33.i5.50
pages 445-457

Effect of Particle Size Distribution on Rheological Properties of Fly Ash Slurries at High Concentrations

Abhai Kumar Verma
Kamla Nehru Institute of Technology; Civil Engineering Department, Bundelkhand Institute of Engineering and Technology, Jhansi, (UP), India
The Institute is a 4-year Engineering Degree awarding Institute affiliated to UPTU Lucknow (UP) INDIA
Sidh Singh
Indian Institute of Technology Delhi
V. Seshadri
Department of Applied Mechanics, IIT Delhi Hauz Khas, New Delhi, India

SINOPSIS

The rheological behavior of fly ash slurry at any concentration has a marked dependence on particle size distribution. Five groups of fly ash samples having different particle size distribution are prepared by wet sieving to simulate the fly ash collected from different fields of electrostatic precipitator hoppers. Six suspensions of different solid concentrations (by weight) are prepared from each sample to study the effect of solid concentration on the rheological parameters. The study shows that the fly ash slurries above a solid concentration of 40 % by weight are non-Newtonian and that the experimental data fit a simple Bingham plastic model. It further shows that the rheological parameters increase monoton-ically with the solid concentration and have higher values for finer particulate suspensions.


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