×
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!
  • Students Click Here

*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

Jobs

Hydraflow 2004 - Delmarva Unit hydrograph

Hydraflow 2004 - Delmarva Unit hydrograph

Hydraflow 2004 - Delmarva Unit hydrograph

(OP)
I am using the 2004 vs. of Hydraflow and was wondering how you enter the delmarva unit hydrograph into the program.  Does anyone have the .cds file type for this or experience with it?

RE: Hydraflow 2004 - Delmarva Unit hydrograph

Try this:

 Intelisolve
307 Galax Ridge
Salem, SC 29676

Email:
support@intelisolve.com
    

Phone:
(864) 944-8685
9:00 A.M. to 5:00 P.M. (EST) M-F
Fax: (864) 944-5737

RE: Hydraflow 2004 - Delmarva Unit hydrograph

Possibly you're confusing Hydraflow with HydroCad ?  I believe HydroCad and WIN TR-55 both use the DelMarVa distribution but I don't think HydraFlow 2007 does.  Can't remember if Hydraflow 2004 does or not.

good luck

RE: Hydraflow 2004 - Delmarva Unit hydrograph

(OP)
That is the problem, I am utilizing the SCS Type III Hydrograph, altering the shape factor to 285 from the 484 but am not certain that this is correctly utilizing the delmarva unit hydrograph.

Thanks for you thought, I am going to give them a call tomorrow.

RE: Hydraflow 2004 - Delmarva Unit hydrograph

Regardless of the software you use, that the Unit Hydrograph selection is completely independent of the rainfall selection (Type II, etc.).

HydroCAD can be used with any UH you wish.  The SCS UH is the default, but you can select other UH's tables (such as Delmarva) on the UH tab of the calculation settings.


RE: Hydraflow 2004 - Delmarva Unit hydrograph

jwkdesign:

I assume you are designing in Delaware (since wanting to use the Delmarva UH).

It is my understanding that adjusting the shape factor alone is not sufficient to model the Delmarva UH.

In looking at the approved software list from DNREC, it lists Hydraflow as supporting the Delmarva UH.  As mentioned, I would contact their support if implementation is not a specific Delmarva UH setting.

Again...if this is in fact Delaware, one must use Type II not Type III 24 hr rainfall distribution.

RE: Hydraflow 2004 - Delmarva Unit hydrograph

(OP)
I contacted Intellisolve and technical support indicated changing the shape factor does the job.  We are working in southern new jersey which requires the use of the Del UH and utilizatio of the Type III 24-hr rainfall distribution.

Thanks

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!


Resources