Título Multi-species simulation of Trichel pulses in oxygen
Autores DURAN OLIVENCIA, FRANCISCO JOSÉ, Pontiga, F. , Castellanos, A.
Publicación externa Si
Medio JOURNAL OF PHYSICS D-APPLIED PHYSICS
Alcance Article
Naturaleza Científica
Cuartil JCR 1
Cuartil SJR 1
Impacto JCR 2.72100
Impacto SJR 1.09600
Fecha de publicacion 15/10/2014
ISI 342678900014
DOI 10.1088/0022-3727/47/41/415203
Abstract The development of negative corona Trichel pulses in oxygen between a spherical cathode and a plane is investigated using a plasma chemical model of ten selected species, which includes electrons, ions and neutrals. The interaction among these species is described by a model that incorporates the most important plasma chemical processes, such as ionization, electron attachment and detachment, electron impact dissociation and excitation, and clustering. The spatio-temporal evolution of charged and neutral species and their reaction rates are evaluated along different moments during the pulses. The case of the first Trichel pulse is considered separately, since its characteristics clearly differ from the subsequent pulses. The results show that the negative space charge is constituted of different types of ions, depending on the stage of the pulse. Moreover, a spatial segregation of negative ions is observed during the post-pulse period. Regarding neutral species, ozone increases linearly with time, without being considerably affected by the occurrence of pulses.
Palabras clave Trichel pulses; corona discharge; plasma chemistry; ozone
Miembros de la Universidad Loyola

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