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Gamma-ray-based measurement of concentration distribution in pipe flow of settling slurry: vertical profiles and tomographic maps
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SYSNO ASEP 0427217 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Gamma-ray-based measurement of concentration distribution in pipe flow of settling slurry: vertical profiles and tomographic maps Tvůrce(i) Krupička, Jan (UH-J) SAI, RID
Matoušek, Václav (UH-J) ORCID, SAI, RIDZdroj.dok. Journal of Hydrology and Hydromechanics. - : Ústav pro hydromechaniku AV ČR, v. v. i.. - : Ústav hydrológie SAV - ISSN 0042-790X
Roč. 62, č. 2 (2014), s. 126-132Poč.str. 7 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. SK - Slovensko Klíč. slova two-phase flow ; gamma radiometry ; computational tomography ; slurry flow experiment Vědní obor RIV BK - Mechanika tekutin Obor OECD Fluids and plasma physics (including surface physics) CEP GA103/09/0383 GA ČR - Grantová agentura ČR Institucionální podpora UH-J - RVO:67985874 UT WOS 000333982600006 EID SCOPUS 84898946395 DOI 10.2478/johh-2014-0012 Anotace Principles of gamma-ray-based measurement are summarized and their application is demonstrated on an operation of the radiometric facility installed in the test loop for slurry flows at the Institute of Hydrodynamics. The facility is able to measure vertical profiles of chord-averaged concentrations and concentration maps in the pipe cross section. A methodology of measurement is proposed including detection and quantification of random and systematic errors. Experimental results are discussed in the light of the proposed methodology. Experimentally determined vertical profiles of concentration are presented for slurry flows of four different fractions of glass beads. The tomographic application of the radiometric device is demonstrated on a measured concentration map and a suitable image reconstruction method is tested. High reliability of measured concentration distributions is proved except for regions near the pipe wall. The radiometric method is shown to be a useful tool for measurement of concentration distribution in slurry flow through a pipe. Pracoviště Ústav pro hydrodynamiku Kontakt Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Rok sběru 2014
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