Critical flow
Culvert, screen and outfall manual, (CIRIA C786) published by CIRIA in 2019, defines critical flow as the: ‘Free surface flow with minimum specific energy for a given discharge and a Froude (Fr) number of unity.’
Where the Froude number is: ‘A dimensionless ratio between inertia and gravity forces in a fluid, or between mean velocity and wave celerity. Froude number is unity for critical flow, more for supercritical flow and less for subcritical flow.’
The water depth at a critical flow is referred to as the critical depth.
[edit] Related articles on Designing Buildings Wiki
Featured articles and news
Water management terms and techniques
Eight forms of resource optimisation.
CIOB responds to Chancellor Sunak's announcement on jobs and the economy.
CMA & IRM competition law risk guide published
Revised guide to competition rules available.
Brick slip soffit systems and intricate brick features.
An innovative engineering approach could have had tragic consequence for NYC.
Some secrets behind how canals work.
Breaking down possible steps of pre-contract management.
Looking to the future in Wales
ICE event includes comments from Welsh Government Minister Julie James.
How to write them and what they should include.
Designing Buildings Wiki becomes the world's first website to adopt the new knowledge standard.
Pressure Independent Control Valves (PICVs)
Assessing the most beneficial design elements.
Exploring different types of vinyl flooring.