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Thinning of kaolin slurry
Vlasák, Pavel ; Chára, Zdeněk ; Konfršt, Jiří
After mixing kaolin with water attractive and repulsive forces between kaolin particles initiate process of coagulation and peptisation, respectively. The coagulation process in the kaolin slurry gives rise to voluminous aggregates of kaolin particles, where a great deal of water is fixed.
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Laminar and turbulent transition in fine-grained non-Newtonian slurries
Vlasák, Pavel ; Chára, Zdeněk
The transition from laminar to turbulent flow regime is very important for design and operation of non-Newtonian slurries pipelining. The paper deals with experimental investigation of laminar/turbulent transition, flow behaviour and rheological parameters of fine grained highly concentrated non-Newtonian slurries in horizontal pipes. Research is focussed on different character of slurry behaviour in laminar and turbulent region and verification of prediction turbulent model.
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