Tag:outlet=bell_mouth

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Public-images-osm logo.svg outlet = bell_mouth
Pipeline tulip outlet.png
Description
An outlet design intended to spread fluid flow as to reduce speed and friction when going out of a pressurised duct Show/edit corresponding data item.
Group: man made
Used on these elements
may be used on nodesshould not be used on waysshould not be used on areasshould not be used on relations (except multipolygon relations)
Useful combination
Status: approvedPage for proposal

Bell mouth design intended to spread a fluid flow as to reduce speed and friction when going out of a pressurised duct.

It can be combined with man_made=outfall sometimes.

Examples

Culverts or tunnels

Photo Location Tagging Comments
Bell mouth outlet France

outlet=bell_mouth man_made=outfall

This bell mouth spread water as to prevent slope erosion of downstream stream due to high flow rate coming from the duct. Here man_made=outfall remains valid as you can see the lake the water is going in in the picture background.