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TUFLOW 1D Channels and Hydraulic Structures: Difference between revisions

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Trash screens can be represented by applying additional head losses and blockage effects in accordance with the QUDM guidance. The approach depends on the location of the screen and the degree of blockage as summarised in the table below.
 
Where the screen is attached directly to the culvert inlet or outlet, the losses are applied to the culvert itself. For screensexample, a rectangular shaped screen located upstream or downstream of thea culvert, can be represented as a short zero length channel should be set up as an RF (rectangular culvert with fixed losses) type channel in the 1d_nwk GIS layer to represent the screen. In bothall cases, the net flow area should be reduced to account for the bars and any debris blockage, either by adjusting the flow area directly or by using the %blockage option.
 
<span style="color:red">Under Construction => '''<span style="color:black">Recommended setup for representing trash screens (based on QUDM guidance).</span>'''</span>
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