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Table 2
Comparison between the main physical quantities given in both the dimensionless units of the DNS and the corresponding dimensional values, and their stellar counterparts for a 5 M⊙ Cepheid.
| Physical quantity | DNS dimensionless values | Scaling | DNS dimensional values | Stellar values |
|
|
||||
| Length Lz | 2 | d | 1.9 × 109 m | 1.9 × 109 m |
| Ttop | 2 | Ttop | 12 000 K | 12 000 K |
| Tbot | 13 | Ttop | 78 000 K | 78 000 K |
| ρtop | 10-2 | ρtop | 4 × 10-5 kg/m3 | 4 × 10-5 kg/m3 |
| ρbot | 1.4 | ρtop | 5.7 × 10-3 kg/m3 | 7 × 10-3 kg/m3 |
| Oscillation period | 1.63 |
|
2.52 days | 5.36 days |
| Gravity g | 8 | cpTtop/d | 0.84 m/s2 | 0.8 m/s2 |
| Flux | 4.5 × 10-2 | ρtop(cpTtop)3/2 | 5.2 × 108 J/s/m2 | 7.7 × 107 J/s/m2 |
| Viscosity ν | 2.5 × 10-4 |
|
6 × 109 m2/s | 2.5 × 10-3 m2/s |
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