|
This post provides a modelling example for a 1D pump using a fixed flow rate and pump curve. For this example we will model a pump in two common situations (2D-2D & 1D-2D).
=Pump Attributes=
A pump needs to first be digitised in a 1d_nwke layer. The direction of the polyline must go from inlet to outlet as a pump is unidirectional (? Is that true). The attributes required for a pump in your 1d_nwke layer can be found within the 2015 TUFLOW manual.<br>
The 2D and 1D check files can be controlled separately by having the <font color="blue"><tt>Write Check Files </tt></font> <font color="red"><tt>==</tt></font> in both the .tcf and .ecf files. However,
<font color="blue"><tt>Write Check Files </tt></font> <font color="red"><tt>==</tt></font> in the .tcf file will automatically also write the 1D check files. There is no need to specify <font color="blue"><tt>Write Check Files </tt></font> <font color="red"><tt>==</tt></font> in the .ecf file unless a different folder path for the files is desired.<br>
The check files for big models can get very large and consume quite a lot of hard drive space. It is possible to exclude or include certain check file types. This is done by specifying either "Include" or "Exclude" to the left of the equals sign:<br>
<font color="blue"><tt>Write Check Files Exclude </tt></font> <font color="red"><tt>==</tt></font><tt> <file list></tt><br>
<font color="blue"><tt>Write Check Files Include </tt></font> <font color="red"><tt>==</tt></font><tt> <file list></tt><br>
The file list is a space separated list of files. To exclude the large grd, uvpt and zpt files specify:<br>
<font color="blue"><tt>Write Check Files Exclude </tt></font> <font color="red"><tt>==</tt></font><tt> zpt uvpt grd</tt><br>
To output only the gridded elevations (DEM_Z) the command would be :<br>
<font color="blue"><tt>Write Check Files Include </tt></font> <font color="red"><tt>==</tt></font><tt> DEM_Z</tt><br>
=2D-2D Configuration=
Depending on the size of the model, the check files may contain a large amount of data, for example the _grd_check file may contain thousands or millions of cells. As a modeller you probably won't inspect each cell to ensure that the data is value, however you may want to view this for the entire model. Thematic mapping or styling the input layers can be used in your GIS software to do this.
|