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Cavitation bubble collapse in a vicinity of a liquid-liquid interface : basic research into emulsification process
ID
Orthaber, Uroš
(
Avtor
),
ID
Zevnik, Jure
(
Avtor
),
ID
Petkovšek, Rok
(
Avtor
),
ID
Dular, Matevž
(
Avtor
)
PDF - Predstavitvena datoteka,
prenos
(9,43 MB)
MD5: 3EF04E4B7882F812B596006484698632
URL - Izvorni URL, za dostop obiščite
https://www.sciencedirect.com/science/article/pii/S1350417720307835
Galerija slik
Izvleček
The initial motivation for the study was to gain deeper understanding into the background of emulsion preparation by ultrasound (cavitation). In our previous work (Perdih et al., 2019) we observed rich phenomena occurring near the liquid-liquid interface which was exposed to ultrasonic cavitation. Although numerous studies of bubble dynamics in different environments (presence of free surface, solid body, shear flow and even variable gravity field) exist, one can find almost no reports on the interaction of a bubble with a liquid-liquid interface. In the present work we conducted a number of experiments where single cavitation bubble dynamics was observed on each side of the oil-water interface. These were accompanied by corresponding simulations. We investigated the details of bubble interface interaction (deformation, penetration). As predicted, by the anisotropy parameter the bubble always jets toward the interface if it grows in the lighter liquid and correspondingly away from the interface if it is initiated inside the denser liquid. We extended the analysis to the relationships of various bubble characteristics and the anisotropy parameter. Finally, based on the present and our previous study (Perdih et al., 2019), we offer new insights into the physics of ultrasonic emulsification process.
Jezik:
Angleški jezik
Ključne besede:
cavitation
,
liquid-liquid interface
,
bubble
,
oil
,
emulsion
,
simulation
Vrsta gradiva:
Članek v reviji
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
FS - Fakulteta za strojništvo
Status publikacije:
Objavljeno
Različica publikacije:
Objavljena publikacija
Leto izida:
2020
Št. strani:
15 str.
Številčenje:
Vol. 68, art. 105224
PID:
20.500.12556/RUL-116997
UDK:
532.528(045)
ISSN pri članku:
1350-4177
DOI:
10.1016/j.ultsonch.2020.105224
COBISS.SI-ID:
20084995
Datum objave v RUL:
18.06.2020
Število ogledov:
1375
Število prenosov:
554
Metapodatki:
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Objavi na:
Gradivo je del revije
Naslov:
Ultrasonics Sonochemistry
Skrajšan naslov:
Ultrason. sonochem.
Založnik:
Butterworth-Heinemann, Elsevier Science
ISSN:
1350-4177
COBISS.SI-ID:
707668
Licence
Licenca:
CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:
http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:
To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Sekundarni jezik
Jezik:
Slovenski jezik
Ključne besede:
kavitacija
,
mehurčki
,
emulzija
Projekti
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
P2-0401
Naslov:
Energetsko strojništvo
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
P2-0270
Naslov:
Proizvodni sistemi, laserske tehnologije in spajanje materialov
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
BI-US/18-19-031
Financer:
Drugi - Drug financer ali več financerjev
Program financ.:
Ministry of Education, Science and Sport
Številka projekta:
C-3330-17-529029
Financer:
EC - European Commission
Program financ.:
H2020
Številka projekta:
771567
Naslov:
An investigation of the mechanisms at the interaction between cavitation bubbles and contaminants
Akronim:
CABUM
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