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Density-conserving shape factors for particle simulations in cylindrical and spherical coordinates. (English) Zbl 0768.76056
Summary: It is shown that, in cylindrical and spherical coordinates, particle-to- grid weighting based on conventional particle-in-cell (PIC) and cloud-in- cell (CIC) shape factors results in non-uniform grid densities even for uniform particle distributions. Instead, alternative, density-conserving weighting schemes are discussed, including modified PIC and CIC weighting.

MSC:
76M25 Other numerical methods (fluid mechanics) (MSC2010)
76X05 Ionized gas flow in electromagnetic fields; plasmic flow
78M25 Numerical methods in optics (MSC2010)
78A35 Motion of charged particles
Software:
TRIPIC
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