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Adaptive Numerical Simulation of Streamer Propagation in Atmospheric Air

Shailendra Singh (Institutionen för material- och tillverkningsteknik, Högspänningsteknik) ; Yuriy Serdyuk (Institutionen för material- och tillverkningsteknik, Högspänningsteknik) ; Raimund Summer
Proc. Comsol Conference, Oct. 23-25, 2013, Rotterdam, The Netherlands (2013)
[Konferensbidrag, refereegranskat]

In this paper, we report on a 2D axissymmetric numerical model of the streamer-type discharge process in atmospheric air, as it can be implemented into COMSOL Multiphysics. The charge conserving Boltzmann drift-diffusion equations are solved in a logarithmic representation for improved numerical stability, whilst reducing the need for artificial diffusion terms. A charge density adaptive mesh is utilized and the calculation domain is reduced to the relevant dimensions for improved numerical performance. The calculation domain for the Poisson-equation is spatially extended as appropriate to the physical boundary conditions. Results of the so obtained numerical simulations of a nanosecond discharge are analyzed and compared with previously published experimental data.

Nyckelord: streamer propagation, numerical simulation, adaptive meshing, logarithmic formulation

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Denna post skapades 2013-11-06. Senast ändrad 2016-03-16.
CPL Pubid: 186143


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Institutioner (Chalmers)

Institutionen för material- och tillverkningsteknik, Högspänningsteknik (2005-2017)



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