Název:
Collision of a rotating spherical particle with flat wall in liquid
Autoři:
Lukerchenko, Nikolay ; Kvurt, Y. ; Chára, Zdeněk ; Vlasák, Pavel Typ dokumentu: Příspěvky z konference Konference/Akce: Engineering Mechanics 2012 /18./, Svratka (CZ), 2012-05-14 / 2012-05-17
Rok:
2012
Jazyk:
eng
Abstrakt: The collision of the rotating spherical particle with a flat wall in liquid was studied experimentally. The glass and steel beads rotating in water and silicon oil were used. A high-speed video system recorded the bead motion before and after the collision. It was shown that the restitution coefficient depends not only on the Stokes number but also on the particle angular velocity; the restitution coefficient decreases with increasing of the rotational Reynolds number and decreasing of the Stokes number. These results can be useful in modelling of the two-phase flows near solid boundaries.
Klíčová slova:
liquid viscosity; particle rotation; restitution coefficient; spherical particle Číslo projektu: GAP105/10/1574 (CEP) Poskytovatel projektu: GA ČR Zdrojový dokument: Engineering Mechanics 2012, ISBN 978-80-86246-40-6
Instituce: Ústav pro hydrodynamiku AV ČR
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Informace o dostupnosti dokumentu:
Dokument je dostupný na vyžádání prostřednictvím repozitáře Akademie věd. Původní záznam: http://hdl.handle.net/11104/0209424