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Title:

A split control variate scheme for PIC simulations with collisions

Document type:
Zeitschriftenaufsatz
Author(s):
Sonnendrücker, Eric; Wacher, Abigail; Hatzky, Roman; Kleiber, Ralf
Abstract:
When the distribution function of plasma particles stays close to some analytically known function, statistical noise inherent to Monte Carlo simulations can be greatly reduced by introducing this function as a control variate in the computation of the velocity moments. Such a method, even though it can be naturally applied to nonlinear simulations, has originally emerged from linearised simulations and is usually called the delta f particle-in-cell (PIC) method. In the past, the method has bee...     »
Keywords:
Vlasov--Poisson system, Fokker--Planck, Collisions, Particle in cell, PIC, Monte Carlo, Control variate
Journal title:
Journal of Computational Physics
Year:
2015
Journal volume:
295
Pages contribution:
402-419
Fulltext / DOI:
doi:https://doi.org/10.1016/j.jcp.2015.04.004
WWW:
https://www.sciencedirect.com/science/article/pii/S0021999115002442
Print-ISSN:
0021-9991
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