Acceleration of flow-focused liquid jets in the presence of a strong electric field

Zupan, Bor (author), Bajt, Saša (author), Chapman, Henry N. (author), Šarler, Božidar (author)

This paper investigates the acceleration of flow-focused micro-jets under an applied external electric field. Such thin and fast jets are needed, for example, to deliver protein crystals in X-ray free electron laser experiments. This contribution focuses on analysing the acceleration of liquid jets produced from 50 % vol water and ethanol mixture. Such jets are focused with nitrogen gas and are subjected to 0 - 7 kV electric potential between a submerged electrode and an external electrode downstream of the nozzle. To gain insights into jet geometric properties an automatic image recognition and computer vision algorithm is utilised on already published data. Jet velocities and acceleration calculated for two jetting regimes show that application of external electric field accelerates the jets up to four orders of magnitude larger than the conventional micro-jets.

• Language: English
• Keywords: flow focusing, electrosprays, jetting, gas dynamic virtual nozzle, electric field
• Work type: Article
• Typology: 1.08 - Published Scientific Conference Contribution
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2024
• Number of pages: 5 str.
• Numbering: Vol. 2766, art. 012070
• PID: 20.500.12556/RUL-158411
• UDC: 519.62
• ISSN on article: 1742-6596
• DOI: 10.1088/1742-6596/2766/1/012070
• COBISS.SI-ID: 198089731
• Publication date in RUL: 07.06.2024

Record is a part of a proceedings

• Title: Eurotherm 2024
• COBISS.SI-ID: 197654787

Record is a part of a journal

• Title: Journal of physics. Conference series
• Publisher: Institute of Physics Publishing
• ISSN: 1742-6596
• COBISS.SI-ID: 2035044

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: fokusiranje toka, elektrospreji, brizganje, plinsko dinamična virtualna šoba, električno polje