×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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

Geopak Drainage Friction Slope

Geopak Drainage Friction Slope

Geopak Drainage Friction Slope

(OP)
Has anyone had any issues with Geopak Drainage calculating the friction slopes wrong? I have contacted Bently support and spoke with a couple of their engineers, sent them all my data, and they could not seem to figure it out. I even created a spreadsheet to calculate the friction slope "by hand" and prove that something was not being calculated correctly. They were unable to give me an answer and forwarded my concern to their programmers so if there is an issue they will work it out in the next release of Geopak Drainage.

This is very hard to believe that as long as this software has been avaiable, and the professinal nature of its use, that I am the first person to notice this.

On my output (created through Geopak Drainage after running a network) is showing a friction slope almost exactly equal to the slope of the pipe in almost all pipe runs. When the friction slope is calculated by hand, it is much smaller (less than 1 percent)

Any help or comments would be great.

Thanks!

RE: Geopak Drainage Friction Slope

Nik
Friction Slope is that slope (S) in Manning's formula required to convey a specified discharge under uniform flow conditions given a depth, roughness, and shape. Under uniform flow, depth and flow area are constant and the friction slope, the actual slope, and the energy slope are all equal.
Feel free to email me any specifics and I will look at it. my email is on the cooresponding Bentley forum you posted.

Mike B
Bentley Systems
Civil Professional Services

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


Resources

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