No full text
Scientific conference in universities or research centers (Scientific conferences in universities or research centers)
Development of a multi-component diffusion fluid solver for two-temperature plasma sheath
Gangemi, Giuseppe Matteo; Alvarez Laguna, Alejandro; Magin, Thierry et al.
2021
 

Files


Full Text
No document available.

Send to



Details



Keywords :
plasma; sheath; multicomponent
Abstract :
[en] Studying the plasma sheath is fundamental to a number of applications, ranging from arcing in high vacuum electronics to charging of space platforms due to plume contamination of electric thrusters: these fields differ for the variety of the species involved in the simulation of the fluid and for the different nature of the wall confining it. In this work we investigate two different approaches to plasma fluid simulations: the multifluid, commonly used in the plasma physics community, and the multicomponent approach, commonly used in the combustion and re-entry flows community; solving the electrostatic Poisson equation ensures charge conservation in the domain and allows for a continuous description of the quasineutral bulk and of the space-charged sheath. The proposed multicomponent approach offers advantages when simulating a large number of species as the number of equations (and the model complexity) decreases, with a reduction in computational cost. We compare the results of the two methods by simulating a one-dimensional discharge with an isothermal mixture of argon plasma: we adapt the boundary conditions from the classic multifluid approach and implement a semi-implicit treatment of the electric potential in order to improve the stability of the time integration scheme.
Disciplines :
Aerospace & aeronautics engineering
Author, co-author :
Gangemi, Giuseppe Matteo ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Design of Turbomachines
Alvarez Laguna, Alejandro;  Laboratoire de Physique des Plasmas
Magin, Thierry  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Département d'aérospatiale et mécanique
Hillewaert, Koen  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Design of Turbomachines
Language :
English
Title :
Development of a multi-component diffusion fluid solver for two-temperature plasma sheath
Publication date :
October 2021
Event name :
74th Annual Gaseous Electronics Conference
Event date :
from 4-10-2021 to 8-10-2021
Audience :
International
Commentary :
The presenting author is financed by the Fonds National de Recherche Scientifique (FNRS) through the FRIA grant
Available on ORBi :
since 07 October 2021

Statistics


Number of views
57 (17 by ULiège)
Number of downloads
0 (0 by ULiège)

Bibliography


Similar publications



Contact ORBi