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Influence of velocity gradient on optimisation of the aggregation process and properties of formed aggregates. Part 2. Quantification of the influence of agitation intensity and time on the properties of formed aggregates
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SYSNO ASEP 0364483 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Influence of velocity gradient on optimisation of the aggregation process and properties of formed aggregates. Part 2. Quantification of the influence of agitation intensity and time on the properties of formed aggregates Tvůrce(i) Polášek, Pavel (UH-J) Zdroj.dok. Journal of Hydrology and Hydromechanics. - : Ústav pro hydromechaniku AV ČR, v. v. i.. - : Ústav hydrológie SAV - ISSN 0042-790X
Roč. 59, č. 3 (2011), s. 196-205Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. SK - Slovensko Klíč. slova inline high density suspension (IHDS) formation process ; aggregation phases ; aggregate properties ; compactness ; relative density of aggregates Vědní obor RIV BK - Mechanika tekutin CEP GA103/07/1016 GA ČR - Grantová agentura ČR CEZ AV0Z20600510 - UH-J (2005-2011) UT WOS 000295950800005 DOI 10.2478/v10098-011-0016-6 Anotace The follow up research into the IHDS process was carried out with a Couette device. The effects of the agitation intensity (G) and the agitation time on the kinetics and the mechanism of the aggregation process were studied. The very favourable influence of high agitation intensity for the formation of more compact and dense aggregates was confirmed. It was also proved that the agitation intensity and time are the inherent means influencing the properties of the resultant aggregates such as their size, shape, density and homogeneity. It was confirmed that the aggregation process passes through a minimum. Furthermore, it was verified that the aggregation process takes place in four consecutive phases, namely the phase of a) formation, b) compaction, c) steady (equilibrium) state and d) inner restructuring. The pattern of the aggregates development in these phases remains the same irrespective of the magnitude of G applied but the time at which these phases are completed is G dependent. Pracoviště Ústav pro hydrodynamiku Kontakt Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Rok sběru 2012
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