Depth /Rise

Hello Peter,

The depth / rise (%) field changes as per the solver you are using. 

If using the Implicit Engine the "depth" is the depth in the middle of the conduit

If using the Explicit Engine the "depth" is the depth value calculated from the Explicit engine

If using the GVF-Convex or GVF-Rational Engine the "depth" is the depth in the average depth in the conduit

Similarly,

depth (normal) / rise (%) indicates a ratio of "normal" depth by rise and depth (maximum) / rise (%) indicates a ratio of maximum average depth by rise.

Peter Ghali said:

And how can I evaluate the pipes based on d/D while the constrain of the percentage of full is 75%.

You can consider the depth / rise (%) at every time step and check how your constraint of 75% full capacity is satisfied at every time step. You can also consider the depth (maximum) / rise (%) to know the percentage full when the maximum average depth is considered against the rise.

We have a documented wiki on this. Please see the article below for reference;

Depth over rise results for conduits

Additionally, in future if you want to know the definition of a particular term you can look up the description of it at the bottom of the properties tab. See the snapshot below for your reference;

Hope this helps.