Weir / Flume Open-Channel Flow
Open-channel flow over a 90-degree V-notch or rectangular (Francis) weir in cfs, GPM, and MGD from the head over the crest and an editable weir coefficient.
Audience
This tile is built for water operators and the adjacent professions in the Water and Wastewater Operations group. The interactive calculator runs entirely in your browser. No account, no fee, no advertising, no tracking.
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Posture
Rough Logic answers the math question the working professional asks on the job. The site is a calm, fast, ad-free, account-free, ever-free reference. It does not interpret code. It does not replace the licensed professional. It does not store your inputs. The Authority Having Jurisdiction governs all installations and inspections.