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The Fluid-Kinetic Particle-in-Cell method for plasma simulations
Umeå University, Faculty of Science and Technology, Department of Physics.
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2014 (English)In: Journal of Computational Physics, ISSN 0021-9991, E-ISSN 1090-2716, Vol. 271, 415-429 p.Article in journal (Refereed) Published
Abstract [en]

A method that solves concurrently the multi-fluid and Maxwell's equations has been developed for plasma simulations. By calculating the stress tensor in the multi-fluid momentum equation by means of computational particles moving in a self-consistent electromagnetic field, the kinetic effects are retained while solving the multi-fluid equations. The Maxwell's and multi-fluid equations are discretized implicitly in time enabling kinetic simulations over time scales typical of the fluid simulations. The Fluid-Kinetic Particle-in-Cell method has been implemented in a three-dimensional electromagnetic code, and tested against the two-stream instability, the Weibel instability, the ion cyclotron resonance and magnetic reconnection problems. The method is a promising approach for coupling fluid and kinetic methods in a unified framework.

Place, publisher, year, edition, pages
2014. Vol. 271, 415-429 p.
Keyword [en]
Computational plasma physics, Fluid-kinetic particle-in-cell method, Implicit particle-in-cell method
National Category
Fusion, Plasma and Space Physics
Identifiers
URN: urn:nbn:se:umu:diva-90831DOI: 10.1016/j.jcp.2014.02.002ISI: 000336618800022OAI: oai:DiVA.org:umu-90831DiVA: diva2:735238
Available from: 2014-07-24 Created: 2014-07-01 Last updated: 2017-10-12

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Rönnmark, KjellHamrin, Maria

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