Tutorial Module11 Archive: Difference between revisions
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Created page with "= Introduction = This page introduces a basic dam break model setup, and will discuss the following topics: <br> * Setting initial water level inside a dam<br> * Changing 2D..." |
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* Model updates to use TUFLOW HPC <br>
In this module we will further develop the model from <u> [[
[[File:Dam Break UK Benchmark.JPG|600px]]<br>
''UK EA Test Case 6''<br>
Note: Superseded version of this tutorial is located <u>[[
= Module Data =
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<li> Comment out (<font color="green"><tt>!</tt></font>) or delete the line '<font color="blue"><tt>Read GIS SA</tt></font> <font color="red"><tt>== </tt></font> <tt>...</tt>'. This will remove the eastern upstream SA inflow boundary.<br>
<u>'''MapInfo Users:'''</u> <br>
* Open '''2d_bc_M01_002.tab'''. Save the file as '''2d_bc_M11_001.tab''' and delete the southwest (upstream) QT boundary. Save and export the updated file
* Update the <font color="blue"><tt>Read GIS BC</tt></font> command in the TBC file ('''M11_5m_001.tbc''').
:<font color="blue"><tt>Read GIS BC </tt></font> <font color="red"><tt>==</tt></font> <tt>mi\2d_bc_M11_001.mif</tt>
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:* Shape_Width_or_dMax = 5
:''Note: Given the model grid size is 5m, this addition to the model creates a "THICK" breakline with a constant elevation of 60m. <br>''
* Save and export the file
* Update the TGC file ('''M11_5m_001.tgc''') file by adding the following command at the bottom of the file:<br>
:<font color="blue"><tt>Read GIS Z Shape</tt></font> <font color="red"><tt>== </tt></font> <tt>mi\2d_zsh_M11_damwall_001.mif</tt><br>
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* Open the '''2d_iwl_empty''' layer from the '\empty' folder and save it as '''2d_iwl_M11_001.tab''' in the 'Model/mi' folder. Draw a polygon inside the dam. Make sure the polygon vertexes are snapped to the dam wall breakline and the polygon covers all the active domain upstream the dam wall.
* Set the "IWL" attribute as 60.<br>
* Save and export the initial water level file
* Open TCF file ('''M11_5m_001.tcf''') and add the following command below the existing <font color="blue"><tt>Set IWL</tt></font> <font color="red"><tt>== </tt></font> <tt>36</tt> command.<br>
: <font color="blue"><tt>Read GIS IWL</tt></font> <font color="red"><tt>== </tt></font> <tt>..\model\mi\2d_iwl_M11_001.mif</tt><br>
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<font color="blue"><tt>Output Folder</tt></font> <font color="red"><tt>== </tt></font> <tt>..\results\M11\2d</tt><br>
<li> Run the TCF ('''M11_5m_001.tcf''') using your preferred method. <br>
Please refer to [[
</ol>
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TUFLOW HPC was released in September 2017. It is an explicit solver for the full 2D Shallow Water Equations (SWE), including a sub-grid scale eddy viscosity model. The scheme is both volume and momentum conserving, is 2nd order in space and 4th order in time. It uses a variety of control number stability criteria in an automated adaptive timestep framework to achieve unconditional stability (TUFLOW Classic doesn't include this feature). Over 12 months of development was dedicated to modelling accuracy and simulation speed for dam break assessments prior to its release and use on the 2017-2018 United Kingdom Reservoir Flood Inundation Study project (an assessment of the flood risk associated with all registered reservoirs in the United Kingdom - over 2000 in total). The speed and stability of TUFLOW HPC make it particularly well suited to dam break simulations. As such, even though TUFLOW Classic can be used in its own right, TUFLOW HPC is the recommended solver for dam break modelling. <br>
<br>
Please refer to the <u>[https://
<br>
Perform the following steps to use the TUFLOW HPC solver instead of TUFLOW Classic:
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