Almeida, P. G. C.Benilov, M. S.Bieniek, M. S.Cunha, M. D.Gomes, J. G. L.Kaufmann, H. T. Costa2023-06-152023-06-152015Almeida, 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 ICPIGhttp://hdl.handle.net/10400.13/5230The 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.engComputing DC dischargesCOMSOL MultiPhysicsDC dischargesTime-dependent solversStationary solvers.Faculdade de Ciências Exatas e da Engenhariaconference object