Difference between revisions of "1D Culverts"

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{| align="center" class="wikitable" width="75%"
 
{| align="center" class="wikitable" width="75%"
  
! style="background-color:#005581; font-weight:bold; color:white;"| Regime / suffix
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! style="background-color:#005581; font-weight:bold; color:white;"| Regime
 
! style="background-color:#005581; font-weight:bold; color:white;" width=75%| Description
 
! style="background-color:#005581; font-weight:bold; color:white;" width=75%| Description
 
|-
 
|-
| A|| Unsubmerged entrance and exit.  Critical flow at entrance.  Upstream controlled with the flow control at the inlet.   
+
| A| Unsubmerged entrance and exit.  Critical flow at entrance.  Upstream controlled with the flow control at the inlet.   
 
|-
 
|-
 
| B|| Submerged entrance and unsubmerged exit.  Orifice flow at entrance.  Upstream controlled with the flow control at the inlet.
 
| B|| Submerged entrance and unsubmerged exit.  Orifice flow at entrance.  Upstream controlled with the flow control at the inlet.

Revision as of 02:30, 2 February 2016

Page Under Construction


Introduction


  • Advice on SX connections & number of cells to connect to 2D domain – implications
  • Flow regimes – theory behind each.
  • How to check for the flow regime – link to check file
  • How do we sub divide logic rules (operational culverts)*
  • Losses – fixed, Englehund, automatic manholes etc.
  • Provide some justification on the ‘default’ height/width, entry/exit losses.


Flow Regimes

Regime Description
Unsubmerged entrance and exit. Critical flow at entrance. Upstream controlled with the flow control at the inlet.
B Submerged entrance and unsubmerged exit. Orifice flow at entrance. Upstream controlled with the flow control at the inlet.
C Unsubmerged entrance and exit. Critical flow at exit. Upstream controlled with the flow control at the culvert outlet.
D Unsubmerged entrance and exit. Sub-critical flow at exit. Downstream controlled.
E Submerged entrance and unsubmerged exit. Full pipe flow. Upstream controlled with the flow control at the culvert outlet.
F Submerged entrance and exit. Full pipe flow. Downstream controlled.
G No flow. Dry or flap-gate active.
H Submerged entrance and unsubmerged exit. Adverse slope. Downstream controlled.
J Unsubmerged entrance and exit. Adverse slope. Downstream controlled.
K Unsubmerged entrance and submerged exit. Critical flow at entrance. Upstream controlled with the flow control at the inlet. Hydraulic jump along culvert
L Submerged entrance and exit. Orifice flow at entrance. Upstream controlled with the flow control at the inlet. Hydraulic jump along culvert.





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