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An experimental study of liquid micro-jets produced with a gas dynamic virtual nozzle under the influence of an electric field
ID Zupan, Bor (Avtor), ID Peña-Murillo, Gisel Esperanza (Avtor), ID Zahoor, Rizwan (Avtor), ID Gregorc, Jurij (Avtor), ID Šarler, Božidar (Avtor), ID Knoška, Juraj (Avtor), ID Gañán-Calvo, Alfonso M. (Avtor), ID Chapman, Henry N. (Avtor), ID Bajt, Saša (Avtor)

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Izvleček
The results of an experimental study of micro-jets produced with a gas dynamic virtual nozzle (GDVN) under the influence of an electric field are provided and discussed for the first time. The experimental study is performed with a 50% volume mixture of water and ethanol, and nitrogen focusing gas. The liquid sample and gas Reynolds numbers range from 0.09–5.4 and 0–190, respectively. The external electrode was positioned 400–500 μm downstream of the nozzle tip and an effect of electric potential between the electrode and the sample liquid from 0–7 kV was investigated. The jetting parametric space is examined as a function of operating gas and liquid flow rates, outlet chamber pressure, and an external electric field. The experimentally observed jet diameter, length and velocity ranged from 1–25 μm, 50–500 μm and 0.5–10 m/s, respectively. The jetting shape snapshots were processed automatically using purposely developed computer vision software. The velocity of the jet was calculated from the measured jet diameter and the sample flow rate. It is found that micro-jets accelerate in the direction of the applied electric field in the downstream direction at a constant acceleration as opposed to the standard GDVNs. New jetting modes were observed, where either the focusing gas or the electric forces dominate, encouraging further theoretical and numerical studies towards optimized system design. The study shows the potential to unlock a new generation of low background sample delivery for serial diffraction measurements of weakly scattering objects.

Jezik:Angleški jezik
Ključne besede:micro jet, electric field, experimental study, flow focusing, Taylor cone, gas dynamic virtual nozzles
Vrsta gradiva:Članek v reviji
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Status publikacije:Objavljeno
Različica publikacije:Objavljena publikacija
Datum objave:01.01.2022
Leto izida:2023
Št. strani:10 str.
Številčenje:Vol. 10
PID:20.500.12556/RUL-143936 Povezava se odpre v novem oknu
UDK:532.5
ISSN pri članku:2296-889X
DOI:10.3389/fmolb.2023.1006733 Povezava se odpre v novem oknu
COBISS.SI-ID:138668547 Povezava se odpre v novem oknu
Datum objave v RUL:20.01.2023
Število ogledov:402
Število prenosov:79
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
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Gradivo je del revije

Naslov:Frontiers in molecular biosciences
Skrajšan naslov:Front. mol. biosci.
Založnik:Frontiers Media S.A.
ISSN:2296-889X
COBISS.SI-ID:523095321 Povezava se odpre v novem oknu

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:mikro curek, električno polje, fokusiranje toka, Taylorjev stožec, plinsko dinamične virtualne šobe

Projekti

Financer:Drugi - Drug financer ali več financerjev
Program financ.:Center for Free-Electron Laser Science (CFEL)
Naslov:Innovative methods for imaging with the use of x-ray free-electron laser (XFEL) and synchrotron sources: simulation of gas-focused micro-jets

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P2-0162
Naslov:Večfazni sistemi

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:J2-4477
Naslov:Razvoj inovativnih brezmrežnih metod za večfizikalne in večnivojske simulacije vrhunskih tehnologij

Financer:Drugi - Drug financer ali več financerjev
Program financ.:Deutsche Forschungsgemeinschaft (DFG)
Številka projekta:390715994
Naslov:CUI: Advanced Imaging of Matter
Akronim:EXC 2056

Financer:Drugi - Drug financer ali več financerjev
Program financ.:Human Frontiers Science Program
Akronim:RGP0010/ 2017

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