rc_dry_deposition
Functions
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Estimates the deposition rate (first-order rate constant) for airborne particles. |
Module Contents
- rc_dry_deposition.deposition_rate(d_p, rho_p, rho_f, mu, T, H=1.5, g=9.81)
Estimates the deposition rate (first-order rate constant) for airborne particles. Includes both gravitational settling and Brownian motion diffusion.
Parameters: d_p : Particle diameter (m) rho_p : Particle density (kg/m³) rho_f : Fluid density (kg/m³) (typically ~1.2 kg/m³ for air at sea level) mu : Dynamic viscosity of air (Pa·s) (typically ~1.8e-5 Pa·s at 20°C) T : Temperature (K) (typically ~293 K for room temperature) H : Boundary layer height (m) (e.g., 1.5 m indoor, 1000 m outdoor) g : Gravitational acceleration (m/s²) (default: 9.81 m/s²)
Returns: k_d : Deposition rate constant (1/s) v_d : Deposition velocity (m/s) regime: Dominant deposition mechanism