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Table A.1
Symbols used in this article.
| Symbol | Description | Equation |
|
|
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| U c | average headwind velocity | |
| I | turbulent intensity | v L / U c |
| R e p | planetesimal Reynolds number | U c d / ν mol |
| Re | outer gas flow Reynolds number | v L L / ν mol |
| v L | root-mean-square velocity of the gas flow |
|
| u | gas velocity | |
| E k | kinetic energy of the gas flow |
|
| ε Kol | mean kinetic energy dissipation rate |
|
| ν mol | kinematic viscosity | |
| d | planetesimal diameter | |
| R p | planetesimal radius | d/ 2 |
| ℓ Kol | Kolmogorov length scale |
|
| t Kol | Kolmogorov time scale | (νmol/εKol)1/2 |
| L | integral scale |
|
| t L | integral time scale | L / v L |
| t s | response or stopping time of dust | |
| St | Stokes number | t s / t c |
| S t c | critical Stokes number | |
| v c | dust collision speed | |
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| α | disk turbulence parameter | νt/ (csH) |
| ν t | disk turbulent viscosity | α c s H |
| Σgas | disk surface density |
|
| T gas | gas temperature |
|
| c s | speed of sound |
|
| r | orbital distance in the disk | |
| z | vertical height in the disk | |
| H | disk scale height | cs/ ΩK |
| H d | disk scale height for the dust | |
| ΩK | orbital (Keplerian) frequency |
|
| M ⋆ | stellar mass | |
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