Tuflow

TUFLOW 1D Channels and Hydraulic Structures: Difference between revisions

Browse history interactively
← Older editNewer edit →
Content deleted Content added
VisualWikitext
No edit summary
Line 198:
 
== How do I model blockage for irregular shaped culverts or channels? ==
For irregular shaped culverts and channels usingwith thean I type cross section in the 1d_xs layer, a alternative method to simulate blockage is by applying a Skew attribute in the 1d_xs layer. This reduces the effective flow width of the cross section by rotating it relative to the direction of flow and can be used to approximate reduced capacity due to debris or structural blockage.
 
A skew angle of 0 means the cross section is aligned with the flow. As the angle increases, the effective width is reduced. For example, a skew of 45 degrees results in a square root of 2 reduction in width (cos 45 degrees). While this does reduce conveyance, the relationship is not one to one with percentage blockage, as conveyance also depends on flow area, hydraulic radius, and Mannings n.
Retrieved from "https://wiki.tuflow.com/TUFLOW_1D_Channels_and_Hydraulic_Structures"