TUFLOW 2D Cell Size Selection: Difference between revisions
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'''Image of Rainfall Hyetograph '''<br>
The following grid resolutions were used to test the impact of cell size on the assessment results and simulation time:<br>
* 10ft (3.0m) cell resolution - 5,821,533 total cell count
* 12.5ft (3.7m) cell resolution – 3,725,781 total cell count
* 15ft (4.6m) cell resolution – 2,587,629 total cell count
* 20ft (6.1m) cell resolution – 1,455,869 total cell count
*
* 50ft (15.2m) cell resolution – 232,957 total cell count
== Test Case 2 - Results ==
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| '''Cell Resolution, Model Size and Simulation Run Time''' || '''Simulation Run Time <br> (hrs)'''|| '''Difference in Water Level Result <br> (Relative to 10ft Resolution Model)''' || '''Sample Peak Water Level Result'''
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| '''10ft (3.0m) cell size <br>5,821,533 total cell count<br> 20.3hr run time'''||N/A <br><br>The histogram graphs below are calculated by subtracting <br>their peak (maximum) flood level result from the 10ft cell <br>resolution model results shown to the right || [[File:Mesh_Converge_Direct_Rainfall_10ft_002.png|500px]]
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| '''12.5ft (3.8m) cell size<br>
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| '''15ft (4.6m) cell size<br>
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| '''20ft (6.1m) cell size<br>2,587,629 total cell count<br> 3.8hr simulation run time'''|| [[File:Mesh_Converge_Direct_Rainfall_20ft_HIST.png|550px]] || [[File:Mesh_Converge_Direct_Rainfall_20ft_002.png|500px]]
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| '''30ft (9.1m) cell size<br>
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| '''50ft (15.2m) cell size<br>232,957 total cell count<br> 0.5hr simulation run time''' ||[[File:Mesh_Converge_Direct_Rainfall_50ft_HIST.png|550px]] || [[File:Mesh Converge Direct Rainfall 50ft 002.png|500px]]
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