Table 1 Typical example for global simulations of solar system bodies with various simulation techniques
Technique | MHD | Ion-electron multi-fluids | Hybrid PIC | Full PIC | Full Vlasov |
|---|---|---|---|---|---|
Size of body (radius) | Huge (scaleless) | Large (approximately 20 d i ) | Large (approximately 20 r i ) | Small (approximately 20 λ De ) | Medium (approximately 20 r e ) |
Charge separation/accumulation | No | Yes | No | Yes | Yes |
Ion gyro motion | No | No | Yes | Yes | Yes |
Numerical noise | Low | Low | High | High | Low |
Computational cost | Low | Low | Medium | High | Huge |
Parallelization | Easy | Easy | Difficult | Difficult | Easy |