000013890 001__ 13890
000013890 005__ 20161115094004.0
000013890 04107 $$aeng
000013890 046__ $$k2016-08-21
000013890 100__ $$aKiyama, Akihito
000013890 24500 $$aEffects of a water hammer and cavitation on the motion of a gas-liquid interface

000013890 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000013890 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000013890 506__ $$arestricted
000013890 520__ $$2eng$$aThe interaction among a water hammer and the motion of a gas-liquid interface is of great importance in various fluid systems. We recently reported a simplified model for clarifying the interaction. However, the most dominant event (i.e. the pressure wave propagation) of the model has not been experimentally verified. This study measures the pressure near the interface in order to experimentally reveal the mechanism of the interface motion. We impact a liquid-filled container and generate a pressure wave in a liquid. The pressure impulse in the early stage of the wave propagation event is compared with the maximum volume of cavitation bubbles. Remarkably, a linear relation between the pressure impulse and bubble volume is found. The trend is the same as the relation between the interface velocity and the bubble volume we beforehand reported. It indicates that the pressure impulse decides the motion of the interface.

000013890 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013890 653__ $$a

000013890 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000013890 720__ $$aKiyama, Akihito
000013890 8560_ $$ffischerc@itam.cas.cz
000013890 8564_ $$s180914$$uhttps://invenio.itam.cas.cz/record/13890/files/PO.FM06-1.19.103.pdf$$yOriginal version of the author's contribution as presented on CD, XMLout( page 868, code PO.FM06-1.19.103).
000013890 962__ $$r13812
000013890 980__ $$aPAPER