Bulletin of the American Physical Society
76th Annual Gaseous Electronics Conference
Volume 68, Number 9
Monday–Friday, October 9–13, 2023; Michigan League, Ann Arbor, Michigan
Session FT2: Atmospheric Pressure Plasmas II
10:00 AM–11:45 AM,
Tuesday, October 10, 2023
Room: Michigan League, Koessler
Chair: Yusuke Nakagawa, Tokyo Metropolitan Univ
Abstract: FT2.00002 : GEC Student Excellence Award Finalist Presentation - Spatio-temporal distribution of neutral radical species in an atmospheric pressure He/O2 radio-frequency plasma jet based on a spatially 2D hybrid simulation*
10:15 AM–10:30 AM
Presenter:
Máté Vass
(Ruhr-Universität Bochum)
Authors:
Máté Vass
(Ruhr-Universität Bochum)
David A. Schulenberg
(Ruhr-Universität Bochum)
Zoltan Donko
(Wigner Research Center)
Ihor Korolov
(Ruhr-University Bochum)
Peter Hartmann
(Wigner Research Centre for Physics, Hungary)
Julian Schulze
(Ruhr University Bochum, Germany)
Thomas Mussenbrock
(Ruhr-Universität Bochum)
In this work we investigate the COST reference microplasma jet, operated in a He/O2 mixture (99.5%/0.5%), excited by a single frequency waveform (with f=13.56 MHz and Vrms=250 V) for different flow velocities, based on a spatially 2D hybrid simulation. The simulation is based on a fluid model, solving the 2D continuity equation using the drift-diffusion approximation for all species, including the gas flow and chemical reactions using rate coefficients. Electron impact processes are accounted for by a Monte Carlo procedure. Based on measurements of the atomic oxygen density, we show, that this simulation method is capable of describing the COST jet in a quantitative manner, providing an agreement with experiments within 20%. We elucidate what role electron impact processes and chemical reactions play in the buildup of neutral radicals along the jet. Specifically, we show how the atomic oxygen density can reach saturation as a function of the gas flow velocity.
* This work was supported by the German Research Foundation in the frame of the collaborative research center SFB 1316, Project A4.
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700