Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Tc for upstream pipes into catch basins

Tc for upstream pipes into catch basins

Tc for upstream pipes into catch basins

when i model catchbasins i typically use the "catch basin" type of pond, and model the outlet as the down stream connecting culvert.

How do I "take advantage of the Tc" of the outlet (downstream) culvert as it traverses across my next downstream subatchment?

In other words... I am wondering if the outlet culvert of a catchbasin pond should be included as a Tc segment in the next downstream subcatchment?

But that would artificially increase the length of the Tc run!

By modeling the outlet pipes of catchbasins, are my outlet pipes correctly delivering the pipe flow to the next pond?

Craig T. Bailey, PE

RE: Tc for upstream pipes into catch basins

As a general rule, you want to avoid a "double allowance" for any flow segment.  You can handle some flow segments as part of the Tc, OR as a separate routing operation, but you should not do both for the same segment.  For details on these options please see www.hydrocad.net/pipes.htm

Also, try to keep the model as simple as possible in order to meet your specific analysis objectives.  Don't include components that don't need to be in the model.  For general guidelines please see www.hydrocad.net/howto.htm

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close