Simulation of plasma cloud expansion
- Russian Academy of Sciences, Novosibirsk (Russian Federation). Inst. of Computational Technologies
Non-stationary processes of collisionless interaction of plasma flows occurring a variety of physical situations ranging from laboratory devices to plasmas in space. The expansion of the plasma clouds in magnetized background is simulated by the use of 2D and 3D Electromagnetic hybrid code (particle ions, fluid electrons of nonzero mass). The original set of simulation equations includes kinetic Vlasov`s equation for ions, motion equation and energy change equation for electrons, Maxwell`s equations. The method of solution is based on application of standard PIC-method for determination coordinates and average velocities of particles and finite-difference splitting-up scheme for determination temperature, electric and magnetic fields. As a result of the processes of collisionless interaction of plasma flows in the surrounding background the waves and shock are generated. The structure of disturbances in the case of small Alfven-Mach number M < 2.5 is caused by the positive dispersion due to which the short wavelength disturbances run forward. At large M the vector of the transverse magnetic field was polarized linearly. The flute-type instability of the expanding plasma cloud boundary was developed in the case of M < 1.
- OSTI ID:
- 63086
- Report Number(s):
- CONF-940604-; ISBN 0-7803-2006-9; TRN: IM9527%%137
- Resource Relation:
- Conference: 1994 Institute of Electrical and Electronic Engineers (IEEE) international conference on plasma science, Santa Fe, NM (United States), 6-8 Jun 1994; Other Information: PBD: 1994; Related Information: Is Part Of 1994 IEEE international conference on plasma science; PB: 252 p.
- Country of Publication:
- United States
- Language:
- English
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