Flood Modeller Tutorial Module01: Difference between revisions
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1D-2D linked models are able to utilise the individual benefits of 1D and 2D solution schemes. In this example, the 1D Flood Modeller scheme is used to represent the watercourses where the flow is essentially uni-directional. A 2D scheme is suited to the representation of floodplains where more complex flow patterns may occur. <br>
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As [[
[[file:Poor_2d_rep.png|400px]]<br>
Using a cell size that is coarse relative to the width of the watercourse channel may reduce the accuracy of the conveyance in the channel. There are two options for improving the representation of the creek channel:<br>
* decrease the width of the 2D cells; and/or
* model the channel as a 1D network, dynamically linked to the 2D domain (the floodplain).
In the [[
TUFLOW may be dynamically linked to 1D networks using the hydrodynamic solutions of ESTRY (TUFLOW 1D), Flood Modeller
Setting up a 1D/2D model where the 1D channel cuts through the 2D domain is probably the most time-consuming type of a model to setup. However, the reduction in simulation time can be beneficial and make this a good approach. For this module, the complete Flood Modeller 1D model has been provided, to allow for progressing through the module in a relatively short period of time.<br>
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*<b>IEF</b>: A blank folder in which to store Flood Modeller Event Files used to simulate the model.
*<b>RES</b>: A blank folder in which to write the Flood Modeller result files.
For further information on each file type, please refer to the [
For this tutorial, the floodplain of the study area will be modelled entirely in TUFLOW.
The cross-sections in the Flood Modeller 1D model have been trimmed to the top of bank to ensure there is no double-counting of storage within the floodplain.
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:<font color="blue"><tt>Read GIS Code BC </tt></font> <font color="red"><tt>== </tt></font> mi\2d_bc_FMT_M01_HX_001_R.MIF<font color="green"><tt> ! Deactivates the cells where the watercourse has been modelled in 1D </tt></font>
Note that the order of the commands is important. The layer '''2d_code_FMT_M01_001.MIF''' first activates cells within the modelled area then the layer '''2d_bc_FMT_M01_HX_001_R.MIF''' deactivates selected cells along the watercourse.
'''Other GIS'''<br>
Add an extra command line after <font color="blue"><tt> Read GIS Code </tt></font><font color="red"><tt>==</tt></font>..\model\gis\2d_code_FMT_M01_001_R.shp
:<font color="blue"><tt>Read GIS Code BC </tt></font> <font color="red"><tt>== </tt></font> gis\2d_bc_FMT_M01_HX_001_R.shp <font color="green"><tt> ! Deactivates the cells where the watercourse has been modelled in 1D </tt></font>
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<br>
In the <b>Complete_Model\FMT_M01\Flood_Modeller\IEF</b> folder a batch file has been provided. To use the batch file in this tutorial:<br>
*Ensure that you [
*Move the batch file to the <b>FMT_Tutorial\FMT_M01\Flood_Modeller\IEF</b> folder
*Open the batch file in a text editor. On the 'set FloodModeller=' line, change the path from the one provided to the full path to the ISISf32.exe file that you set up with the installation folders.
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=Review the Results=
Modelled results can be processed, reviewed and visualised in many different packages.<br>
For a complete introduction to the different options, [
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</ol>
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If you experience an issue that is not detailed above please send an email to [mailto:support@tuflow.com support@tuflow.com]<br>
=Conclusion=
We introduced the user to the linking of a TUFLOW 2D domain to a 1D Flood Modeller model.<br>
For further training opportunities see <u>[https://tuflow.com/training/training-course-catalogue/ TUFLOW Training Catalogue]</u> and/or contact <u>[mailto:training@tuflow.com training@tuflow.com]</u>. <br>
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