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Two-dimensional par...
Two-dimensional particle-in-cell simulation of the expansion of a plasma into a rarefied medium
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- Sarri, Gianluca (författare)
- Queen's University of Belfast, UK
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- Murphy, Gareth Charles (författare)
- Dublin Institute for Advanced Studies, Dublin, Ireland
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- Dieckmann, Mark Eric, 1969- (författare)
- Linköpings universitet,Medie- och Informationsteknik,Tekniska högskolan
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- Bret, Antoine (författare)
- ETSI Ind, University of Castilla-LaMancha, Spain
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- Quinn, Kevin (författare)
- Queen's University of Belfast, UK
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- Kourakis, Ioannis (författare)
- Queen's University of Belfast, UK
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- Borghesi, Marco (författare)
- Queen's University of Belfast, UK
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- Drury, Luke o'C (författare)
- Dublin Institute for Advanced Studies, Dublin, Ireland
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- Ynnerman, Anders (författare)
- Linköpings universitet,Medie- och Informationsteknik,Tekniska högskolan
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(creator_code:org_t)
- 2011-07-14
- 2011
- Engelska.
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Ingår i: New Journal of Physics. - : IOP Publishing. - 1367-2630. ; 13:7, s. 073023-1-073023-23
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The expansion of a dense plasma through a more rarefied ionized medium has been studied by means of two-dimensional particle-in-cell simulations. The initial conditions involve a density jump by a factor of 100, located in the middle of an otherwise equally dense electron-proton plasma with uniform proton and electron temperatures of 10 eV and 1keV, respectively. Simulations show the creation of a purely electrostatic collisionless shock together with an ion-acoustic soliton tied to its downstream region. The shock front is seen to evolve in filamentary structures consistently with the onset of the ion-ion instability. Meanwhile, an un-magnetized drift instability is triggered in the core part of the dense plasma. Such results explain recent laser-plasma experiments, carried out in similar conditions, and are of intrinsic relevance to non-relativistic shock scenarios in the solar and astrophysical systems.
Ämnesord
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Nyckelord
- laser plasmas
- pic simulations
- electrostatic shock
- Plasma physics
- Plasmafysik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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