0453746 - ÚH 2017 RIV FR eng C - Konferenční příspěvek (zahraniční konf.)
Zych, M. - Hanus, R. - Vlasák, Pavel - Petryka, L. - Jaszczur, M.
Application of nuclear techniques in two-phase liquid-solid particles hydrotransport investigations.
EPJ Web of Conferences. Vol. 114. Les Ulis: EDP Sciences, 2016, č. článku 02145. ISSN 2101-6275.
[Experimental Fluid Mechanics 2015 /10./. Praha (CZ), 17.11.2015-20.11.2015]
Grant CEP: GA ČR GAP105/10/1574
Institucionální podpora: RVO:67985874
Klíčová slova: water-solid mixture * vertical two-phase flow * radiotracers measurement * gamma-ray absorption measurement * particle velocity * cross-correlation method
Obor OECD: Fluids and plasma physics (including surface physics)
Web výsledku:
http://www.epj-conferences.org/articles/epjconf/pdf/2016/09/epjconf_efm2016_02145.pdf
DOI: https://doi.org/10.1051/epjconf/201611402145

The paper presents gamma application to two-phase flow investigation in a vertical pipeline, where the flow of solid particles transported by water was examined by use of both: radiotracers and famma-absorption method. The simultaneous use of two methods allows analyzing of important parameters of solid particles hydrotransport. In the described experiments as solid phase the ceramic models representing natural polymetallic ocean nodules were used. Radiotracers allow to track the movements of selected models, representing specified grain size and the designation of its velocity. However gamma-absorption method enables measurement of average solid-phase velocity. For analysis of electrical signal obtained from scintillation detectors the cross-correlation method has been applied.

Trvalý link: http://hdl.handle.net/11104/0254515