Kinetic mechanisms in air plasmas

• Type: Article in International Scientific Journal
• Date: 2019

Authors

Carlos D. Pintassilgo (Author) FEUP; Vasco Guerra (Author) Other

Journal

Title: Plasma Physics and Controlled Fusion

Vol. 61 No. 1

Pages: 1-12

ISSN: 0741-3335

Publisher: Institute of Physics Publishing

Indexing

ISI Web of Science

Scopus

INSPEC

Other information

DOI: 10.1088/1361-6587/aad96f

Abstract (EN): A self-consistent kinetic model is developed to study air (N-2-20%O-2) plasma discharges in single pulses, their afterglows, and in repetitively pulsed discharges produced at low-pressures (133, 210 and 400 Pa) in a 1 cm inner radius tube. Since the pulse duration ranges from similar to 0.3 up to similar to 10 ms, the model includes the interplay of the vibrational kinetics of N-2 and chemical kinetics involving neutral, excited and charged species, which are coupled to the electron Boltzmann equation during the active plasma phase. A satisfactory agreement is found between modelling simulations and different experimental results. A comprehensive and detailed analysis of the modelling calculations is carried out, providing a general overview and insight of the most important mechanisms that take place in air plasmas at low-pressures.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 12