Tutorial M07: Difference between revisions

= GIS Inputs =

Create, import and view input data:

<br>

 

 

<li>Add the following command lines:<br>

<font color="blue"><tt>Orientation Angle </tt></font> <font color="red"><tt>== </tt></font> <font color="black"><tt>TGC</tt></font> <font color="green"><tt> ! Uses orientation angle same as the TGC</tt></font> <br>

<font color="blue"><tt>Base Cell Size </tt></font> <font color="red"><tt>== </tt></font> <font color="black"><tt>10</tt></font> <font color="green"><tt> ! Sets level 1 cell size to 10 metres</tt></font> <br>

<font color="blue"><tt>Model Origin and Extent </tt></font> <font color="red"><tt>== </tt></font> <font color="black"><tt>TGC</tt></font> <font color="green"><tt> ! Uses origin and extent same as the TGC </tt></font> <br>

<font color="blue"><tt>Read GIS Nesting </tt></font> <font color="red"><tt>== </tt></font> <font color="black"><tt>gis\2d_qnl_M07_001_R.shp</tt></font> <font color="green"><tt> ! Reads in Quadtree nesting level GIS layer </tt></font> <br>

<li>Save the QCF.

</ol>

<li>Open the '''M07_5m_001.tcf''' in a text editor and add the following line in the 'Model Inputs' section: <br>

<font color="blue"><tt>Quadtree Control File </tt></font> <font color="red"><tt>== </tt></font> <font color="black"><tt> ..\model\M07_001.qcf </tt></font> <font color="green"><tt> ! Reference the Quadtree Control File</tt></font> <br>

<li>Save the TCF.

</ol>

<li>Save a copy of '''_run_M02_HPC.bat''' as '''_run_M07_HPC.bat''' in the '''Module_07\TUFLOW\runs''' folder.

<li>Update the batch file to reference the '''M07_5m_001.tcf''' :<br>

<font color="blue"><tt>'''set'''</tt></font> <font color="black"><tt>run</tt></font><font color="red"><tt>=</tt></font><font color="black"><tt>start "TUFLOW" /wait</tt></font> <font color="orange"><tt> %exe%</tt></font> <font color="black"><tt> -b</tt></font> <br>

<font color="orange"><tt>%run% </tt></font> <font color="black"><tt>M07_5m_001.tcf </tt></font> <br>

= Check Files =

While the model is running, review the added features are specified correctly:

<br>

 

Using the quadtree mesh reduces the total cell count as larger cells are used in areas of flat terrain, the original cell size is kept along primary flow paths. The '''_TUFLOW Simulations.log''' shows the simulation times for the standard 5m grid '''M02_5m_001''' and the quadtree model '''M07_5m_001'''. In this example, the quadtree model is 1.5 times faster than the non quadtree predecessor. <br>

<br>

<br>

 

:*A two level quadtree mesh was constructed using a quadtree nested level layer.

:*Check files were used to review the mesh.

 

<br>