Theory of Plasma Simulation Using Finite-Size Particles

摘要: The elementary properties of a plasma, in which the small‐separation force is smoothed from Coulomb force, are developed. modification considered as being produced by spreading out charge distribution particle to make finite size R (cloud). These clouds move freely through one another and interact normal electromagnetic fields. A method adapt point‐particle results for plasma oscillations, shielding, fluctuations, collisions, shown, modifications these discussed detail. relevance considerations computer simulation plasmas (in some smoothing consequence numerical methods used additional sometimes added) discussed. It found that short wavelength interaction can be without destroying desired physics, while suppressing collisional effects noise at wavelengths < exaggerated due use far fewer particles than real plasma.