HY8:Increased Resistance in Box Culverts: Difference between revisions

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{{HY8Main}}
{{HY8Main}}
[[Category:Energy Dissipators|I]]

Revision as of 16:05, 26 February 2014

The input variables required for this calculation are the following:

  • h/ri—Ratio of roughness element height divided by hydraulic radius taken about the top of the roughness element.
  • Height of the roughened section (h)


The following figure shows the flow regimes and variables for an increased resistance energy dissipator implemented in a circular culvert.

HY8fig7-6.jpg

Variables from the figure

  • L—Length from beginning of one roughness element to the beginning of the next roughness element.
  • h—height of roughness element
  • Di—diameter of roughened section (opening)


v • e
HY-8
Introduction:Getting Started   •   Layout   •   Vena Contracta   •   Building a Project   •   Locate Project   •   Culvert Crossing Data   •   Run Analysis   •   Report Generation
Crossing and Culvert Data:Crossings   •   Discharge Data   •   Roadway Data   •   Tailwater Data   •   Irregular Channel   •   Culvert Data   •   Site Data   •   Culvert Invert Data   •   Embankment Toe Data
AnalysisProject Units   •   Roadway Overtopping   •   Inlet Control Computations   •   Outlet Control Computations   •   Tables and Plots
Energy DissipationScour Hole Geometry   •   Increased Resistance   •   Tumbling Flow   •   USBR Type IX Baffled Apron   •   Drop Structures   •   Stilling Basins   •   Streambed Level Structures
MethodsAquatic Organism Passage   •   Low Flow Hydraulics
TroubleshootingDifferences from DOS HY-8   •   Limitations   •   HY-8 User Manual
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