Study of backward propagating and second harmonic Langmuir waves by 2D particle-in-cell simulation

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Table 1:

The parameters of two dimensional simulation.
Parameters	Symbols	Simulation	Realistic scale
Number of time steps		4500
Time step	$\Delta t$	0.01
Timescale	$1/\omega_{\rm pe}$	0.25	$1.6\times 10^{-5}~{\rm s}$
Number of grid points	$N_{x}\times N_{y}$	$128 \times64$
Grid spacing	$\triangle_{x} \triangle_{y}$	1
Spatial scale	$c/\omega_{\rm pe}$	25	$4.8\times 10^3~\rm m$
Ambient Number of particles		16
Beam Number of particles		4
Ambient electron density	n	0.005	$1.24\times 10^6 m^{-3}$
Electron plasma frequency	$\omega_{\rm pe}$	4.0	10 kHz
Electron gyrofrequency	$\Omega_{\rm e}$	0.5
Electron beam density	$n_{\rm b}$	0.025n
Electron thermal velocity	$v_{\rm the}$	1	50 eV
Ion thermal velocity	$v_{\rm thi}$	0.005	2.3 eV
Ion mass	m_i	1836 $m_{\rm e}$
Speed of beam	$v_{\rm b}$	10	5 keV
Speed of light	c	100	3 $\times 10^8\;\rm ms^{-1}$

Source LaTeX | All tables | In the text

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