topic Re: Hydraflow- storm sewer program in Civil 3D Forum

Hydraflow- storm sewer program

Anonymous — Wed, 05 Feb 2020 15:10:31 GMT

Hello,

I am analyzing a pipeline using Hydraflow storm sewer program. The structure at the top left is the outfall which is a jellyfish filter. It is followed by a junction box and two grate inlets.

When I run the analysis, there is no flow to the first pipe. The HGL starts at the pipe at the second grate inlet. I have flow values in for both pipes but for some reason, it does not take flow to the first pipe. I have attached screenshots and highlighted the section in profile view. Any help is appreciated. Thanks in advance

Re: Hydraflow- storm sewer program

SMorykin — Tue, 11 Feb 2020 20:19:23 GMT

@Anonymous - Can you provide more detailed on Line 3? I see Line 1 information for your outfall, but looks like the problem is on Line 3. Even if you sent a screen capture of the data values?

Re: Hydraflow- storm sewer program

Anonymous — Tue, 11 Feb 2020 21:15:59 GMT

Hello,

I have attached the picture of grate 1/line 3 details. Thanks in advance.

Re: Hydraflow- storm sewer program

SMorykin — Tue, 11 Feb 2020 21:52:39 GMT

@Anonymous - Everything seems okay with line 3. Can you attach the .stm file so I can take a closer look?

Re: Hydraflow- storm sewer program

Anonymous — Tue, 11 Feb 2020 22:11:23 GMT

Hello,

When I ran the program now, I did the 'enhanced modeling system' option and now it works. I used the 'analysis w/design' option before and for some reason it did not take flow to pipe 1 before. Thank you for your time.

Re: Hydraflow- storm sewer program

SMorykin — Wed, 12 Feb 2020 13:39:10 GMT

@Anonymous - oh great! Glad you got it figured out!

Re: Hydraflow- storm sewer program

fcernst — Wed, 12 Feb 2020 13:47:00 GMT

Even though you're using a Known Q for Line 3, the program for some reason has always needed a non-zero value for the drainage area to use the Known Q's.