Langevin Representation of Coulomb Collisions for bi-Maxwellian Plasmas

0356371 - ÚFA 2011 RIV US eng J - Článek v odborném periodiku
Hellinger, Petr - Trávníček, Pavel M.
Langevin Representation of Coulomb Collisions for bi-Maxwellian Plasmas.
Journal of Computational Physics. Roč. 229, č. 14 (2010), s. 5432-5439. ISSN 0021-9991. E-ISSN 1090-2716
Grant CEP: GA AV ČR IAA300420702; GA AV ČR IAA300420602
Výzkumný záměr: CEZ:AV0Z30420517
Klíčová slova: Coulomb collisions * Langevin equation * Bi-Maxwellian distribution function * Stochastic differential equation
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
Impakt faktor: 2.345, rok: 2010
http://www.elsevier.com/locate/jcp

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.
Trvalý link: http://hdl.handle.net/11104/0194909