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== TUFLOW Boundary Updates ==
===1D/2D Linking===
1D/2D for the pipe network inlet connections have already automatically been defined in the via the SWMM Inlet Usage Layer, '''swmm_iu_TS02_001'''
'''<< Insert figure of Attribute table highlighting Conn_1D_2D attribute>>'''
To compete the pipe network 1D/2D linking between 1D SWMM and 2D TUFLOW, we still need to define the linkage at the outlet.
<ol>
<li>In the QGIS Layers Panel, select (left click) '''Links--Conduits'''.
<li>In the Processing Toolbox, go to TUFLOW > SWMM and select 'BC - Create channel endpoint 1D/2D connections'. This opens the dialog shown below.
:*Input Conduits Layer: '''Links--Conduits'''
:*Offset Distance: 2
:*Length of BC lines: 10
:*Output Layer:
<ol>
::<li>Click the ... and select 'Save to GeoPackage'.
::<li>Navigate to the '''TUFLOW\model\swmm''' folder and select '''TS02_001.gpkg'''. Click Save.
::<li>A dialog will open. In the Layer Name box, write '''2d_bc_SWMM_Pipe_Network_Connections_001_L'''.
::<li>Click 'OK'.
</ol>
<li>Click 'Run'.
<li>Once the tool is finished, click 'Close'.
<li>'''2d_bc_SWMM_Pipe_Network_Connections_001_L''' should appear in the Layers Panel.
</ol>
<br><font color="red">'''<< Add video >>'''</font><br>
=== Boundary Conditions===
We will be using TUFLOW's 2D direct rainfall (also known as rain on grid) functionality for the catchment inflow boundary condition approach to demonstrate flows into the pipe network inlets. There are a wide range of direct rainfall options built into TUFLOW, including:
* Globally uniform rainfall. This method applies temporally varied rainfall uniformly (spatially) over the entire model.
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