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One-dimensional modeling of concentration distribution in pipe flow of combined-load slurry
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SYSNO ASEP 0428308 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název One-dimensional modeling of concentration distribution in pipe flow of combined-load slurry Tvůrce(i) Matoušek, Václav (UH-J) ORCID, SAI, RID
Krupička, Jan (UH-J) SAI, RIDZdroj.dok. Powder Technology. - : Elsevier - ISSN 0032-5910
Roč. 260, July (2014), s. 42-51Poč.str. 10 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova hydraulic transport ; sediment transport ; two-phase flow ; experiment ; bed shear Vědní obor RIV BK - Mechanika tekutin CEP GA103/09/0383 GA ČR - Grantová agentura ČR Institucionální podpora UH-J - RVO:67985874 UT WOS 000336873200007 EID SCOPUS 84898951067 DOI 10.1016/j.powtec.2014.03.070 Anotace A one-dimensional profile of solids concentration ismodeled in a cross section of partially stratified flow of slurry in a pipe. In the flow, a certain proportion of solids is transported as contact load and occupies a sliding bed and a transport layer above the bed. The rest of solid particles is transported as suspended load within and above the transport layer.Amodel based on a vertical distribution of shear stress is proposed to predict a concentration profile in a cross section of such flow. Besides the concentration profile, the model predicts the thickness and velocity of the bed. Furthermore, the model determines a vertical position of the top of the transport layer and a position of the hydrodynamic axis of the flow. Model predictions show a satisfactory match with new experimentally determined profiles collected in slurry flows of four different fractions of glass beads in a 100-mm pipe of our laboratory loop. Pracoviště Ústav pro hydrodynamiku Kontakt Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Rok sběru 2015
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