Kinetic Simulations of the Radially Expanding Plasma into Vacuum

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Demir M. Ş., Cohen S. A.

INTEERNATIONAL CONGRESS ON SCIENTIFIC ADVANCES, İstanbul, Türkiye, 22 - 25 Aralık 2021, ss.1030, (Özet Bildiri)

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: İstanbul
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.1030
  • Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
  • İstanbul Üniversitesi-Cerrahpaşa Adresli: Evet

Özet

In this study; the problem of two-dimensional plasma expansion into a vacuum is considered which is an important research topic in both astrophysical and laboratory fusion interests. A fully kinetic particle in cell simulation was performed by using VPIC code [1]. A collisionless, fully ionized hydrogen plasma loaded to a portion of the simulation domain in the presence of a constant magnetic field. The simulation results show that the outer region is mostly populated by electrons and this causes an electric field that leads the electrons to accelerate outward. Also, it is observed that increasing the magnetic field slows down the plasma expansion velocity. [1]. K.J. Bowers, B.J. Albright, B. Bergen and T.J.T. Kwan, Ultrahigh performance threedimensional electromagnetic relativistic kinetic plasma simulation, Phys. Plasmas 15, 055703 (2008); http://dx.doi.org/10.1063/1.2840133 Keywords— Plasma simulation;Plasma expansion; Fusion; Particle in cell. This work was supported by The Scientific and Technological Research Council of Turkey (TUBITAK) (Award 2219 – International Postdoctoral Research Fellowship Programme 2018/1-1059B191800069).