×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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

Pond outlet w/parallel culverts

Pond outlet w/parallel culverts

Pond outlet w/parallel culverts

(OP)
I have a perforated riser outlet structure that outlets to two paralell culverts.  The culverts are 30" and 12" RCP pipes at diffrent inverts, so a discharge multiplier won't work. How do I route the 8 rows of 0.5" orifaces to two different pipes?

Thanks,
Greg

RE: Pond outlet w/parallel culverts

Greg,

Try this.  Model your detention/retention area as a pond with only the 0.5" orifice outlets.  Then direct the flow into a second pond where you describe the elevations, volume and outlets of the riser itself.  This should get around trying to figure out how to direct which orifice to what outlet.

This also works well if you have surface ponding and are trying to model flow through a catch basin/inlet grate.

Ed

RE: Pond outlet w/parallel culverts

(OP)
That's an interesting workaround, but I'm still trying to wrap my head around it.  Once I get my orifice flow into the next pond, how do I model the culverts?  As primary and secondary devices, or as two devices into a primary outlet?

Also, would you happen to have an example file that you could email me?   gdriscolljr@netscape.net

Thanks,
Greg

RE: Pond outlet w/parallel culverts

If both culvert outlets are routed to the same place, they are generally both set to primary.  As a general rule, the secondary discharge is used only when you want to route the flow separately.  (A flow diversion)

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



News


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