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A layered model for inclined pipe flow of settling slurry
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SYSNO ASEP 0489045 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title A layered model for inclined pipe flow of settling slurry Author(s) Matoušek, Václav (UH-J) ORCID, SAI, RID
Krupička, Jan (UH-J) SAI, RID
Kesely, Mikoláš (UH-J) ORCIDSource Title Powder Technology. - : Elsevier - ISSN 0032-5910
Roč. 333, June (2018), s. 317-326Number of pages 10 s. Publication form Print - P Language eng - English Country CH - Switzerland Keywords inclined pipe ; settling slurry ; pressure drop ; flow stratification ; laboratory loop Subject RIV BK - Fluid Dynamics OECD category Fluids and plasma physics (including surface physics) R&D Projects GA17-14271S GA ČR - Czech Science Foundation (CSF) Institutional support UH-J - RVO:67985874 UT WOS 000433655400031 EID SCOPUS 85046073796 DOI 10.1016/j.powtec.2018.04.021 Annotation The paper deals with mathematical and physical modelling of flow of partially-stratified settling slurry in inclined pipes. Experimental results are presented of flows of aqueous slurries of four fractions of sand and gravel in two laboratory loops of different pipe diameters. They show a considerable variation in pressure drop and distribution of solids with the pipe slope. The degree of flow stratification and frictional pressure drop decrease with the increasing angle of inclination in the ascending pipe while the opposite applies in the descending pipe. A predictive mathematical model is presented which is based on a description of a layered structure of partially stratified slurry flow and takes flow inclination into account. The experimentally observed effects of pipe inclination are well reproduced by model predictions. Predicted pressure drops and solids distributions are in a very reasonable agreement with the experimental results and indicate suitability of the model for engineering practise. Workplace Institute of Hydrodynamics Contact Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Year of Publishing 2019
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