Skip to content
FlowCalc
Browse: Calculators, Guides, About
All calculators Guides About Methodology

Weir Flow (V-Notch + Rectangular)

Open-channel weir equations side by side.

Inputs

Inputs

Result

Rectangular weir flow
592.5 m3/h
V-notch flow
97.3 m3/h

Learn

How to use this result.

Screen open-channel flow over a weir.

Verify before relying.

  1. Confirm units match the input labels before trusting the result.
  2. Recompute at minimum and maximum operating cases, not just the design point.
Screening result for preliminary sizing only. Verify against the manufacturer datasheet and applicable standard before procurement or construction.

Related calculators

Workspace

Keep the assumptions with the result.

Save this calculation to return to the inputs, result, and report from your private workspace.

Sign in or create an account to save this calculation.