Flood Modeller Tutorial Module02 Provisional: Difference between revisions

=Modify Simulation Control Files=

With the input GIS layers modified, the next step is to update the TUFLOW control files and Flood Modeller simulation files to create a linked model.

 

There have been two changes to the model that impact the TGC file:

<li> Save the file. The .tgc file is now ready to be used.</ol>

 

There have been three changes to the model that impact the ECF file:

*We have created a 1d_nwk layer representing the culverts of the proposed pipe network

<li>Save the file. The 1D control file is now ready to be used.</ol>

 

 

There has been one change to the model that impacts the TBC file:

<br><li> Save the file. The tbc file is now ready to be used.</ol>

 

 

We will need to create a new tcf file that references the new tgc, ecf and tbc files.

These two check files provide information on all 1D elements within the model. The _nwk_C_check layer provides information on all 1D channels (including structures) in the model, whilst the _nwk_N_check layer provides information on the nodes. Notice how the _nwk_C check layer shows a series of dashed lines at the locations where we have specified pits in the model. These lines represent 'pit channels', zero length channels that connect the 1D pipe network to the 2D floodplain. Viewing in conjunction with the _nwk_N check layer shows two nodes are created at the upstream (ground level) and downstream (invert of the pipe network) ends of the pit channel.

 

From the <b>TUFLOW\check\2d\</b> folder open within QGIS:

*FMT_M02_001_1d_to_2d_check

The _sac_check layer highlights the 2D cells connected to 1D pits where the 2d_sa inflow boundaries have been applied. The check file has been colour coded to show which 2D cells each of the four inflow boundaries has been applied to. The flow is distributed equally among each of the 2D cells.

 

The successful connection of the Flood Modeller and ESTRY networks can be checked by the presence of CHECK 1393 messages highlighting the presence of "X1DH" and "X1DQ" links to external nodes within the TUFLOW Log File. Alternatively, the success of the connectivity of the "X1DQ" and "X1DH" links can be assessed through reference to the _messages.SHP/GPKG GIS layer which contains CHECK 1393 at each ESTRY node linked to a Flood Modeller node.