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Langevin Representation of Coulomb Collisions for bi-Maxwellian Plasmas
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SYSNO ASEP 0356371 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Langevin Representation of Coulomb Collisions for bi-Maxwellian Plasmas Author(s) Hellinger, Petr (UFA-U) RID, ORCID
Trávníček, Pavel M. (UFA-U) RID, ORCIDSource Title Journal of Computational Physics. - : Elsevier - ISSN 0021-9991
Roč. 229, č. 14 (2010), s. 5432-5439Number of pages 8 s. Language eng - English Country US - United States Keywords Coulomb collisions ; Langevin equation ; Bi-Maxwellian distribution function ; Stochastic differential equation Subject RIV BL - Plasma and Gas Discharge Physics R&D Projects IAA300420702 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) IAA300420602 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z30420517 - UFA-U, BC-A (2005-2011) UT WOS 000279139200009 DOI 10.1016/j.jcp.2010.04.009 Annotation Langevin model corresponding to the Fokker-Planck equation for bi-Maxwellian particle distribution functions is developed. Rosenbluth potentials and their derivatives are derived in the form of triple hypergeometric functions. The Langevin model is tested in the case of relaxation of the proton temperature anisotropy and implemented into the hybrid expanding box model. First results of this code are presented and discussed. Workplace Institute of Atmospheric Physics Contact Kateřina Adamovičová, adamovicova@ufa.cas.cz, Tel.: 272 016 012 ; Kateřina Potužníková, kaca@ufa.cas.cz, Tel.: 272 016 019 Year of Publishing 2011
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