Examples
Examples
Try the starting example
- Grille nominal face area (m²)
- 0.4
- Free-area fraction (%)
- 60
- Airflow (m³/s)
- 0.8
- Net free area (m²)
- 0.24
- Free-area velocity (m/s)
- 3.333333
Try another scenario
- Grille nominal face area (m²)
- 1.4
- Free-area fraction (%)
- 60
- Airflow (m³/s)
- 0.8
- Net free area (m²)
- 0.84
- Free-area velocity (m/s)
- 0.952381
Calculation method
Calculation method
Net free area (m²)
Free area = nominal area × supplied fraction; velocity = airflow/free area.
Free-area velocity (m/s)
Free area = nominal area × supplied fraction; velocity = airflow/free area.
Symbols and units
- a
- Grille nominal face area (m²)
- b
- Free-area fraction (%)
- c
- Airflow (m³/s)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- User-supplied measurements and assumptions; Free area = nominal area × supplied fraction; velocity = airflow/free area. Supported limits: Finite numeric values bounded to 1e9 magnitude; lists and tables contain 1–100 records unless a stricter bound is stated. Inputs use the units shown. Lists explicitly paired by a method must have matching lengths; independent polynomial coefficient vectors may differ. Respect stated physical, interpolation, policy and computational domain limits.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.