Adaptive Numerical Simulation of Streamer Propagation in Atmospheric Air
Paper i proceeding, 2013

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.

adaptive meshing

streamer propagation

logarithmic formulation

numerical simulation


Shailendra Singh

Chalmers, Material- och tillverkningsteknik, Högspänningsteknik

Yuriy Serdyuk

Chalmers, Material- och tillverkningsteknik, Högspänningsteknik

Raimund Summer

Proc. Comsol Conference, Oct. 23-25, 2013, Rotterdam, The Netherlands




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