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The Gaussian Radial...
The Gaussian Radial Basis Function Method for Plasma Kinetic Theory
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- Hirvijoki, Eero, 1985 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Candy, Jeff (författare)
- General Atomics
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- Belli, E (författare)
- General Atomics
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- Embréus, Ola, 1991 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- Elsevier BV, 2015
- 2015
- Engelska.
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Ingår i: Physics Letters, Section A: General, Atomic and Solid State Physics. - : Elsevier BV. - 0375-9601. ; 379:42, s. 2735-2739
- Relaterad länk:
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http://dx.doi.org/10...
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http://manuscript.el...
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Description of a magnetized plasma involves the Vlasov equation supplemented with the non-linear Fokker–Planck collision operator. For non-Maxwellian distributions, the collision operator, however, is difficult to compute. In this Letter, we introduce Gaussian Radial Basis Functions (RBFs) to discretize the velocity space of the entire kinetic system, and give the corresponding analytical expressions for the Vlasov and collision operator. Outlining the general theory, we also highlight the connection to plasma fluid theories, and give 2D and 3D numerical solutions of the non-linear Fokker–Planck equation. Applications are anticipated in both astrophysical and laboratory plasmas.
Ämnesord
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Nyckelord
- Kinetic theory
- Fokker-Planck
- Non-linear
- Coulomb collisions
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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