NDLI: Kinetic description of ionospheric outflows based on the exact form of fokker-planck collision operator: electrons

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Kinetic description of ionospheric outflows based on the exact form of fokker-planck collision operator: electrons

Content Provider	NASA Technical Reports Server (NTRS)
Author	Khabibrakhmanov, Ildar K. Glocer, Alex Khazanov, George V.
Copyright Year	2012
Description	We present the results of a finite difference implementation of the kinetic Fokker-Planck model with an exact form of the nonlinear collisional operator, The model is time dependent and three-dimensional; one spatial dimension and two in velocity space. The spatial dimension is aligned with the local magnetic field, and the velocity space is defined by the magnitude of the velocity and the cosine of pitch angle. An important new feature of model, the concept of integration along the particle trajectories, is discussed in detail. Integration along the trajectories combined with the operator time splitting technique results in a solution scheme which accurately accounts for both the fast convection of the particles along the magnetic field lines and relatively slow collisional process. We present several tests of the model's performance and also discuss simulation results of the evolution of the plasma distribution for realistic conditions in Earth's plasmasphere under different scenarios.
File Size	3641748
Page Count	16
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20130004370
Archival Resource Key	ark:/13960/t17m58k1r
Language	English
Publisher Date	2012-11-07
Access Restriction	Open
Subject Keyword	Geophysics Time Dependence Finite Difference Theory Collisions Fokker-planck Equation Plasmasphere Magnetic Fields Particle Trajectories Convection Pitch Inclination Electrons Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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