Articles with "collision operator" as a keyword



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On the relativistic large-angle electron collision operator for runaway avalanches in plasmas

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Published in 2018 at "Journal of Plasma Physics"

DOI: 10.1017/s002237781700099x

Abstract: Large-angle Coulomb collisions lead to an avalanching generation of runaway electrons in a plasma. We present the first fully conservative large-angle collision operator, derived from the relativistic Boltzmann operator. The relation to previous models for… read more here.

Keywords: collision operator; large angle; operator; runaway ... See more keywords
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Filtered lattice Boltzmann collision formulation enforcing isotropy and Galilean invariance

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Published in 2020 at "Physica Scripta"

DOI: 10.1088/1402-4896/ab4b4d

Abstract: The central framework of a filtered lattice Boltzmann collision operator formulation is to remove hydrodynamic moments that are not supported by the order of isotropy of a given lattice velocity set. Due to the natural… read more here.

Keywords: collision operator; velocity; formulation; collision ... See more keywords
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Lattice gas with molecular dynamics collision operator.

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Published in 2017 at "Physical Review E"

DOI: 10.1103/physreve.96.013314

Abstract: We introduce a lattice gas implementation that is based on coarse-graining a molecular dynamics (MD) simulation. Such a lattice gas is similar to standard lattice gases, but its collision operator is informed by an underlying… read more here.

Keywords: collision operator; lattice gas; molecular dynamics; lattice ... See more keywords