Dear All;
I am modelling storm water network ( Check Attached Model and screen shots). I have the following question.
1- In screen shot capture-2 spread of water in gutter at the end is 2.3 m while depth (out) is 0.0464 m .... how this happen with road cross slop of 1.5%???. please note that flow at the end of GU-1 equal the sum of flow bypassed from CB-1 = 5.742 l/sec and flow of catchment area CM-2 = 16.271 l/sec so, total flow at end of this gutter = 22.011 l/sec.
New folder (3).zip
Regards,
Jesse DringoliTechnical Support Manager, OpenFlowsBentley Communities Site AdministratorBentley Systems, Inc.
New folder.zipDear Jesse;
I do not know why stormcad is allowing us to enter two different gutter cross slops? I think this gutter cross slope shall not be entered in catch basin data and it should be entered in Gutter data only.
Also after I changed the gutter cross slope to 1.5 % still I have the same problem.
Depth = Spread * Slope
Depth = 2.3 m * 0.015
Depth = 0.0345 m
Why Program still giving different numbers for depth out ( check attach jpg)
also, kindly expain what is the beneift of maximum depth gutter in the design (check attached jpg)
Regards
Sayed Elhagar
Re: "I do not know why stormcad is allowing us to enter two different gutter cross slops?"
In some cases the shape of the gutter may be different right at the inlet location. See more here:
Why does the gutter need to be defined in both the catchbasin and gutter element?
Re: Also after I changed the gutter cross slope to 1.5 % still I have the same problem.
When you change the cross slope to 1.5% at the catchbasin, you will need to recompute the model as this will have an effect on the depth and spread. When I make this change on my end and recompute the model, the calculation spread is 2.77 m and the calculated depth is 0.0416 m
Depth = 2.77 m * 0.015
Depth = 0.0416 m
Answer Verified By: Scott Kampa