open access

https://hdl.handle.net/2115/49709

Application of the binary interaction approximation to plasma oscillation

英語

Fourier analysis

2012-07

The Japan Society of Plasma Science and Nuclear Fusion Research

Plasma and Fusion Research

7(Special Issue 1)

2401101-1-2401101-4

This article is based on the presentation at the 21st International Toki Conference (ITC21)

The BIA (Binary Interaction Approximation) formulation in the presence of neutralizing immovable background ion is presented for analysis of multiple electron motion. Such a BIA scheme is applied to electrons in plasmas. A test calculation shows that 1) the plasma oscillation and its frequency are successfully detected, 2) the CPU time for the BIA are less than 1.5 sec and 1 hour for two and three dimensional analysis, while 127 sec and 13 hours for the direct integration method (DIM) by using a Runge-Kutta-Fehlberg integrator with an absolute error tolerance of 10−16, and 3) the number of time steps for the DIM, in such a case, are as many as 5.8 × 104 and 3.6 × 106, while those for the BIA are only 256 and 512.

学術雑誌論文

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Copyright The Japan Society of Plasma Science and Nuclear Fusion Research

1880-6821

AA12346675