Weir Calculation Spreadsheet
Introduction & Importance
Weir calculation is crucial in hydrology and water management. It helps determine flow rates, which is vital for designing and operating water infrastructure…
How to Use This Calculator
- Enter the weir’s width, height, and head on weir.
- Click ‘Calculate’.
- View results and chart below.
Formula & Methodology
The weir calculation uses the weir equation: Q = 2 * (2g)^0.5 * H^1.5 * W, where Q is the discharge, g is gravity, H is the head on weir, and W is the weir width…
Real-World Examples
Data & Statistics
| Weir Type | Formula |
|---|---|
| Rectangular | Q = 2 * (2g)^0.5 * H^1.5 * W |
| Trapezoidal | Q = (2g)^0.5 * H^1.5 * (W + H) * tan(θ) |
Expert Tips
- Always measure weir dimensions accurately.
- Consider weir type and surface roughness in calculations.
- Regularly clean and maintain weirs for accurate readings.
Interactive FAQ
What is the difference between a weir and a flume?
Weirs are simple structures, while flumes are more complex, with a converging-diverging shape…
USGS: Weir – USGS: Weir Equations – Engineering ToolBox: Weir Discharge