PM2.5 Dry Deposition Velocity (Zhang et al. 2001 Model) Calculator

Quick Answer

Calculate PM2.5 Dry Deposition Velocity (Zhang et al. 2001 Model)

Result Interpretation

PM2.5 Dry Deposition Velocity (Zhang et al. 2001 Model) Calculator computes Deposition velocity in m/s using the defined engineering formula and the input values provided.

Worked Example

Verified calculation

Given:

Aerodynamic resistance = 4
Quasi-laminar sublayer resistance = 100
Surface resistance = 200

Expected Result:

Deposition velocity = 1.3157894736842

Engineering Interpretation:

Under the given input conditions, the calculated result is: Deposition velocity = 1.3157894736842 m/s.

The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from automatically validated test cases.

Formula / Method

deposition velocity = (aerodynamic resistance * quasi-laminar sublayer resistance) / (aerodynamic resistance + quasi-laminar sublayer resistance + surface resistance)

Formula family: formula_airpollution_pm2_5_deposition_velocity_calculator

Variables

Symbol	Label	Role	Description
Aerodynamic resistance	Aerodynamic resistance	INPUT	Aerodynamic resistance
Quasi-laminar sublayer resistance	Quasi-laminar sublayer resistance	INPUT	Quasi-laminar sublayer resistance
Surface resistance	Surface resistance	INPUT	Surface resistance
Deposition velocity	Deposition velocity	OUTPUT	Deposition velocity

Calculation Steps

Enter the aerodynamic resistance in s/m.
Enter the quasi-laminar sublayer resistance in s/m.
Enter the surface resistance in s/m.
Step 1: Compute deposition velocity.
Read the deposition velocity (m/s) from the results.

Engineering Summary

Calculate PM2.5 Dry Deposition Velocity (Zhang et al. 2001 Model)

Frequently Asked Questions

What does this calculator calculate?

The PM2.5 Dry Deposition Velocity (Zhang et al. 2001 Model) Calculator estimates Deposition velocity based on the input parameters you provide

Why is aerodynamic resistance important in this calculation?

aerodynamic resistance is inversely proportional to deposition velocity. When you enter aerodynamic resistance in s/m, the calculator uses it in the engineering formula to compute the output

How should I interpret the result deposition velocity?

The calculator outputs deposition velocity in m/s. To convert to km/h, multiply the result by 3.6. The result is computed directly from the input values using the defined engineering formula

What units should I use for the inputs?

Enter each value in the units shown next to the input field: Aerodynamic resistance (s/m), Quasi-laminar sublayer resistance (s/m), Surface resistance (s/m). Make sure all inputs use the specified units for consistent results

What assumptions does this calculator use?

This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment