Showing posts with label Weir and Orifice Flow Equations for a Weir in SWMM 5. Show all posts
Showing posts with label Weir and Orifice Flow Equations for a Weir in SWMM 5. Show all posts

Saturday, August 3, 2013

Weir and Orifice Flow Equations for a Weir in SWMM 5

Weir and Orifice Flow Equations in SWMM 5!

  1. 🌊 When we discuss the weir flow equation in SWMM 5, it's essential to understand that the weir equation is applied under specific conditions. The head (or height of water) at the weir should be between its base (invert elevation) and the top (crown). This is when the weir equation is most applicable.

  2. 🕳️ Once the water level surpasses the weir crown, indicating that the weir is submerged or the head is exceptionally high, the orifice equation comes into play.

It's crucial to ensure the accurate application of these equations, as they determine the flow of water in stormwater systems and can greatly influence flood predictions and management.


Thursday, July 28, 2011

Weir and Orifice Flow Equations for a Weir in SWMM 5

Note:  Weir and Orifice Flow Equations for a Weir in SWMM 5

If you use a weir in SWMM 5 then two flow equations are used

1.       The weir uses the weir flow equation when the head at the weir is between the invert elevation of the weir and the crown of the weir and
 2.      An orifice equation when the head is above the weir crown or the weir is submerged.

Weir and Orifice Flow Equations for a Weir in SWMM 5

by dickinsonre
Note:  Weir and Orifice Flow Equations for a Weir in SWMM 5
If you use a weir in SWMM 5 then two flow equations are used
1.       The weir uses the weir flow equation when the head at the weir is between the invert elevation of the weir and the crown of the weir and
2.      An orifice equation when the head is above the weir crown or the weir is submerged.



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