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Computing DC discharges in a wide range of currents with COMSOL MultiPhysics: time-dependent solvers vs. stationary solvers
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Orientador(es)
Resumo(s)
The benefits of the usage of stationary over time-dependent solvers of COMSOL Multiphysics in
the modelling of DC discharges are explored and demonstrated using as examples glow and high pressure arc discharges; in particular, it is investigated whether time-dependent solvers can be used
for a systematic computation of different modes of these discharges. It has been found that most
modes of both glow and high-pressure arc discharges cannot be computed in the whole range of
their existence by a time-dependent solver. Further, time-dependent solvers are unsuitable for a
computation of all the states belonging to the retrograde sections of the current-voltage
characteristics of the modes, so the discharge manifests hysteresis, which, in principle, can be
observed in the experiment.
Descrição
Palavras-chave
Computing DC discharges COMSOL MultiPhysics DC discharges Time-dependent solvers Stationary solvers . Faculdade de Ciências Exatas e da Engenharia
Contexto Educativo
Citação
Almeida, P. G., Benilov, M. S., Cunha, M. D., Gomes, J. G., & Tereshonok, D. (2015). Computing DC discharges in a wide range of currents with COMSOL MultiPhysics: time-dependent solvers vs. stationary solvers. Proceedings of XXXII ICPIG