Pumpstation+Storage pipe

Hamid,

StormCAD is only a peak flow modeling software, which means that it can only run a peak flow steady state simulation, and the pumps in StormCAD are treated as ideal flow pumps, meaning that flow in will equal flow out. This also means that the pump curve is not used in the calculations with StormCAD. With that being said, if you need a peak flow modeling software to simulate the worst case scenario for designing your system then StormCAD would be the software to choose. If, however, you need to run an extended period simulation and you are choosing between SewerGEMs and Civilstorm then it really doesn't matter, which software you choose because they both pretty much have the same functionality. Both SewerGEMS and Civilstorm can run the same solvers, except that SewerGEMS has the additional GVF-Convex (SewerCAD) solver that Civilstorm does not. If you'd like to know the differences between SewerGEMS and SewerCAD you can find that here:

https://communities.bentley.com/products/hydraulics___hydrology/w/hydraulics_and_hydrology__wiki/11852.sewercad-gvf-convex-solver-vs-sewergems-implicit-and-explicit-dynamic-solvers

This wiki article will explain when it's best to use one software (or solver) vs. the other software (or solver).

If you'd like to see the differences between CivilStorm and SewerGEMS you can have a look at this wiki article.

https://communities.bentley.com/products/hydraulics___hydrology/w/hydraulics_and_hydrology__wiki/12768.difference-between-civilstorm-and-sewergems

Hopefully some of this information helps you to make an informed decision about which software is going to work best for your modeling purposes.

Mark

Thanks Mark for your explanation.
Now, I am going to use SewerGems to model one pump and one storage pipe before of it.
Could you please give a a step by step of what I should do or if its not easy for you just give me an example that has bth component.

Regards

Hamid Akbari

Hamid,

I'm not entirely clear as to what you would like me to give you an example of, but if you're asking me to show you how to model your system then the best advice I can give without having more details about it is that you should model what you have in the system currently. If this is a new system that you are designing, which it sounds like it may be from your previous posts, then my suggestion is to model what you are proposing in your system.

I'm not sure if that helps, but I don't know that I understand what you are looking for so, that's the best advice that I can give without more details of the problem.

Regards,
Mark

As Capture shows I want to model a pipe before the pump. that pipe is going to be surcharged and store water as water level increases in the wet well.
My inputs are:
1-a 5 year event hydrograph (Inlow Vs time)
2-wet well diameter is 6.5m
3-storage pipe length is 160m, 0.4% slope,120mm
4-downstream invert level of pipe is 0.0

note that I am new at SewerGems and need to know where can I indicate hydrograph,....
Thanks

Hamid

Re: hydrograph: If you want to input a user defined hydrograph to a node, open the Inflow (wet weather) collection in the node, select new > hydrograph load.

Re: storage pipe: the dynamic solvers in SewerGEMS (implict or explicit, as selected in the calculation options) should be able to account for conduit storage automatically, so you can try simply laying out the conduit connected to the wetwell and enter the inverts, length and size of the pipe.

Re: new at SewerGEMS: There are quite a few learning resources available if you need some practice and additional exposure to features. I'd recommend starting with the below article in our wiki that lists where to find some of these resources. I also recommend searching through this community for answers to questions that have been asked before.

http://communities.bentley.com/products/hydraulics___hydrology/w/hydraulics_and_hydrology__wiki/learning-resource-guide-for-new-users-of-bentley-sewergems