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The Fokker-Planck operator as an asymptotic limit in anisotropic media.

Mohammad Asadzadeh (Institutionen för materialteknik)
Mathematics and Computer Modelling, Vol. 35 (2002), p. 1119-1133.
[Artikel, refereegranskad vetenskaplig]

We derive the Fokker-Planck operator describing a highly forward peaked scattering process in the linear transport equation, in anisotropic media, as a formal asymptotic limit of the exact integral operator. The resulting operator, being both convective and diffusive in angle and energy variables, reduces the degenerate nature of the Fokker-Planck system compared to the isotropic media case where the corresponding limit is only convective in energy and diffusive in angle.

Nyckelord: Fokker-Planck, anisotropic media, forward peaked scattering, surface harmonics, asymptotic limit.



Denna post skapades 2009-12-09. Senast ändrad 2014-10-09.
CPL Pubid: 103192

 

Institutioner (Chalmers)

Institutionen för materialteknik (1900-2003)

Ämnesområden

Tillämpad matematik

Chalmers infrastruktur