Matematicheskoe modelirovanie
RUS  ENG    JOURNALS   PEOPLE   ORGANISATIONS   CONFERENCES   SEMINARS   VIDEO LIBRARY   PACKAGE AMSBIB  
General information
Latest issue
Archive
Impact factor

Search papers
Search references

RSS
Latest issue
Current issues
Archive issues
What is RSS



Matem. Mod.:
Year:
Volume:
Issue:
Page:
Find






Personal entry:
Login:
Password:
Save password
Enter
Forgotten password?
Register


Matem. Mod., 2019, Volume 31, Number 11, Pages 132–144 (Mi mm4134)  

Model for investigation the physical properties of the system of charged particles taking into account the external magnetic field and friction force

K. N. Dzhumagulova, T. S. Ramazanov, R. U. Masheyeva, M. N. Jumagulov

IETP, Al Farabi Kazakh National University, Kazakhstan

Abstract: In the present work, a modified Verlet numerical scheme was obtained. This scheme is intended to solve the equations of motion of charged particles immersed in an external stationary environment and a uniform magnetic field, for example, charged particles of a condensed substance in a buffer plasma (dusty plasma). The influence of the environment on the particle dynamics is described by friction force. The particle dynamics are also affected by interparticle interaction and an external uniform magnetic field. To obtain the Verlet scheme, the coordinates and velocities of the particles are decomposed into a Taylor series, taking into account the Lorentz force and the friction force. All Taylor series expansion terms that give the same order of accuracy were taken into account. In the obtained numerical scheme, the time step of modeling does not depend on the magnitude of the magnetic field, but is determined only by the internal physical properties of the system under consideration, which is important when modeling an ensemble of charged particles with taking into account electromagnetic fields. The paper solved a test problem for which particle trajectories obtained based on the conventional and modified Verlet scheme for different values, both the friction parameter and the magnetic field parameter, were compared. Based on the analysis of the dependence of the maximum relative deviation of the coordinate on the time step, the time step is independent of the magnetic field in the Taylor expansion scheme, while in the inverse Verlet scheme there is such dependence.

Keywords: molecular dynamics method, Verlet algorithm, external homogenous magnetic field, dusty plasma.

Funding Agency Grant Number
Ministry of Education and Science of the Republic of Kazakhstan AP05132665


DOI: https://doi.org/10.1134/S0234087919110108

Full text: PDF file (570 kB)
References: PDF file   HTML file

Received: 20.05.2019
Revised: 20.05.2019
Accepted:01.07.2019

Citation: K. N. Dzhumagulova, T. S. Ramazanov, R. U. Masheyeva, M. N. Jumagulov, “Model for investigation the physical properties of the system of charged particles taking into account the external magnetic field and friction force”, Matem. Mod., 31:11 (2019), 132–144

Citation in format AMSBIB
\Bibitem{DzhRamMas19}
\by K.~N.~Dzhumagulova, T.~S.~Ramazanov, R.~U.~Masheyeva, M.~N.~Jumagulov
\paper Model for investigation the physical properties of the system of charged particles taking into account the external magnetic field and friction force
\jour Matem. Mod.
\yr 2019
\vol 31
\issue 11
\pages 132--144
\mathnet{http://mi.mathnet.ru/mm4134}
\crossref{https://doi.org/10.1134/S0234087919110108}
\elib{https://elibrary.ru/item.asp?id=41137497}


Linking options:
  • http://mi.mathnet.ru/eng/mm4134
  • http://mi.mathnet.ru/eng/mm/v31/i11/p132

    SHARE: VKontakte.ru FaceBook Twitter Mail.ru Livejournal Memori.ru


    Citing articles on Google Scholar: Russian citations, English citations
    Related articles on Google Scholar: Russian articles, English articles
  • Математическое моделирование
    Number of views:
    This page:104
    Full text:9
    References:6
    First page:6

     
    Contact us:
     Terms of Use  Registration to the website  Logotypes © Steklov Mathematical Institute RAS, 2021