Design and development of a novel magnetic generator of hydrodynamic cavitation

Gostiša, Jurij (avtor), Dular, Matevž (avtor), Rihar, Andraž (avtor), Širok, Brane (avtor), Vončina, Danijel (avtor), Zupanc, Mojca (avtor), Lavrič, Henrik (avtor)

This article investigates the development and evaluation of a prototype hydrodynamic cavitation generator, driven by the electromagnetically induced linear motion of a hollow piston. This so-called magnetic generator of hydrodynamic cavitation (MGHC) is designed for applications requiring small liquid volumes, with its simplicity being a key advantage. It does not require additional pumps or seals and provides a high level of sample protection against contamination. The electromagnetic drive is designed to generate a strong magnetic field, allowing for rapid acceleration of the piston and periodic generation of pressure pulsations associated with the collapse of cavitation clouds throughout the control volume of the device. In the study, the electrical parameters of the electromagnetic drive, such as voltage, current, and frequency, were adjusted to modify the piston’s motion characteristics, thereby influencing the intensity of cavitation, as reflected in the generation of intense pressure oscillations. Simultaneous pressure measurements and visualisation of cavitation structures show that the piston motion induces intense hydrodynamic cavitation along its entire stroke path, particularly during the collapse phases of cavitation clouds. The results offer qualitative and quantitative analysis of the measured variable interdependence and provide a foundation for parametric studies across different spatial and temporal scales aimed at optimising the device in the future.

• Jezik: Angleški jezik
• Ključne besede: hydrodynamic cavitation, rectilinear oscillator, electromagnetic drive, power electronics circuitry, shock waves
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo ; FE - Fakulteta za elektrotehniko
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2026
• Št. strani: 9 str.
• Številčenje: Vol. 29, art. 109903
• PID: 20.500.12556/RUL-180465
• UDK: 532.528:621.313.522
• ISSN pri članku: 2590-1230
• DOI: 10.1016/j.rineng.2026.109903
• COBISS.SI-ID: 270892291
• Datum objave v RUL: 10.03.2026

Gradivo je del revije

• Naslov: Results in engineering
• Založnik: Elsevier
• ISSN: 2590-1230
• COBISS.SI-ID: 529862681

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: hidrodinamska kavitacija, linearni oscilator, eletromagnetni pogon, močnostna elektronska vezja, udarni valovi