Does StormCAD (GVF Rational solver) use the momentum equation in the HEC-22 calculation for structure loss?

   
  Applies To 
   
  Product(s):
Bentley SewerGEMS, Bentley CivilStorm, Bentley StormCAD
  Version(s): 10.00.00.XX +
  Environment:  N/A
  Area: 
  Original Author: Mark Pachlhofer, Bentley Technical Support Group
   

Problem

Does StormCAD  (GVF Rational solver) use the momentum equation in the HEC-22 calculation for structure loss?

Solution

Older versions of StormCAD did not use the momentum equation when a pipe connection occurred, but with the CONNECT edition release of the product there is an option for using this equation. The screen shot below is from the Federal Highway Administration - Hydraulic Engineering Circular No. 22, Third Edition and explains more about this.

1.     2013, US Department of Transportation Federal Highway Administration - Hydraulic Engineering Circular No. 22, Third Edition: Urban Drainage Design Manuel. pg. 7-15, https://www.fhwa.dot.gov/engineering/hydraulics/pubs/10009/10009.pdf , August 05, 2016.

  • Created by
  • When: Fri, Aug 5 2016 4:57 PM
  • Revisions: 1
  • Comments: 0
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