A mixed type boundary-value problem related to the electrostatics of cold plasma jet reactors based on dielectric barrier discharge

• Autorzy: Vafeas Panayiotis , Papadopoulos Polycarpos K. , Svarnas Panagiotis

Identyfikatory

DOI

10.34768/amcs-2021-0016

• Języki publikacji: EN

Abstrakty

EN

A semi-analytical model is presented for the determination of the electric field in reactors used for cold atmospheric pressure plasma (CAPP) jet production, based on the concept of dielectric barrier discharge (DBD). These systems are associated with various applications in contemporary engineering, ranging from material processing to biomedicine, and at the same time they provide many challenges for fundamental research. Here, we consider a simplified system configuration of a single driven electrode, surrounding a thin dielectric tube, which does not contribute to the electric field, since the potential variation is immediate due to its negligible size. By employing the cylindrical coordinate system that perfectly fits the present plasma jet reactor, we separate the area of electric activity into three distinct domains according to the imposed external conditions, while our analysis is restricted to the electrostatic limit of Maxwell’s equations. To this end, cylindrical harmonic field expansions are used for the potential, which produce the corresponding electric fields in each subdomain. Due to the imposed mixed-type boundary value problem, additional linear terms are incorporated, leading to three possible analytical solutions of the physical problem under consideration. The efficiency of the method is demonstrated by comparing the final formulae with a numerical solution, followed by the relevant discussion.

Słowa kluczowe

EN

DBD; dielectric barrier discharge; cold plasma jet; reactor; mixed type boundary value problem; electrostatic potential theory

PL

DBD; wyładowanie bariery dielektrycznej; zagadnienie brzegowe; teoria potencjału elektrostatycznego

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mathematics and Computer Science
• Rocznik: 2021
• Tom: Vol. 31, no. 2
• Strony: 233--245
• Opis fizyczny: Bibliogr. 26 poz., rys.

Twórcy

autor

Vafeas Panayiotis

• Department of Chemical Engineering, University of Patras, University Campus, 26504 Patras, Greece

autor

Papadopoulos Polycarpos K.

• Department of Mechanical Engineering and Aeronautics, University of Patras, University Campus, 26504 Patras, Greece

autor

Svarnas Panagiotis

• Department of Electrical and Computer Engineering, University of Patras, University Campus, 26504 Patras, Greece

Bibliografia

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• [22] Svarnas, P., Papadopoulos, P.K., Athanasopoulos, D., Sklias, K., Gazeli, K. and Vafeas, P. (2018b). Parametric study of thermal effects in a capillary dielectric-barrier discharge related to plasma jet production: Experiments and numerical modelling, Journal of Applied Physics 124(064902): 1–13.
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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).