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1D Open Channels: Difference between revisions

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<font size = 18>Page Under Construction</font>
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=Introduction=
Open waterways (channels) are most commonly modelled as "S" type channels, the S signifies a sloping channel that can handle steep, super-critical flows. Open channels can either be modeled as an inertial or non-inertial channel, the latter removes the Courant stability condition and is useful for stabilizing very short S channels with high velocities.<br>
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<font color="blue"><tt>Read GIS Table Links</tt></font> <font color="red"><tt>==</tt></font><tt>..\model\mi\1d_xs_xxxxx.MIF</tt> ! corresponding cross-section polylines <br>
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The tutorial model [[Tutorial_Module04Tutorial_M11 | here]] runs through the necessary layers and setup for a 1D open channel within a model.
 
=Error trapping=
*''under construction''
 
==Circulations==
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==1D/2D boundary - spill level==
Ideally the location of the HX polyline, that represents the 1D/2D boundary, should be situated along the bank of the open channel. This is covered more in Sectionthe 8<u>[https://docs.2tuflow.1.1 within thecom/classic-hpc/manual/latest/ TUFLOW manualManual]</u>. In situations where the Digital terrain model does not properly define the bank elevation it can be necessary to include ZP points that are snapped to the HX lines that work in the same way as variable z line modifications. Details on how to set up this GIS layer can be found <u>[[Tutorial_M11_001_GIS_Inputs_QGIS_GPKG#2D_Breaklines | here]]</u>.
 
<font color="blue"><tt>Read GIS Z HX Line</tt></font> <font color="red"><tt>==</tt></font><tt>..\model\mi\2d_bc_xxxxx.MIF</tt> ! Uses HX lines and ZP points from a 2d_bc layer <br>
 
 
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=Typical check files used=
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Any further questions please email TUFLOW support: [mailto:support@tuflow.com?Subject=TUFLOW%201D%20open%20channels%20help support@tuflow.com]
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