English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Structure-preserving discretization of the Rosenbluth-Fokker-Planck equationis still an open question especially for unlike-particle collision. In thispaper, a mass-energy-conserving isotropic Rosenbluth-Fokker-Planck scheme isintroduced. The structure related to the energy conservation is skew-symmetryin mathematical sense, and the action-reaction law in physical sense. A thermalrelaxation term is obtained by using integration-by-parts on a volume integralof the energy moment equation, so the discontinuous Galerkin method is selectedto preserve the skew-symmetry. The discontinuous Galerkin method enables onesto introduce the nonlinear upwind flux without violating the conservation laws.Some experiments show that the conservative scheme maintains themass-energy-conservation only with round-off errors, and analytic equilibriaare reproduced only with truncation errors of its formal accuracy.

A mass-energy-conserving discontinuous Galerkin scheme for the isotropic multispecies Rosenbluth--Fokker--Planck equation