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non-uniform surface roughness in FLOW3D

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Old   January 1, 2018, 06:54
Default non-uniform surface roughness in FLOW3D
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Hugo
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Dear All,

I am a beginner of FLOW3D.
I have problem with roughness when I try to simulate the effects of wave and current on sandy beach. How do I take into account the non-uniform surface roughness of seabed in Flow3D? Because the seabed in our study domain includes seagrass, sand, rock, sandy-clay and of course each area has different roughness.



If you have experiences, please share them with me.


Thanks in advance.
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Old   January 3, 2018, 11:23
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brian
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You can define different roughness for different component types. So you can import the surface as multiple component pieces. You can also bring in a single raster that defines spatially variable roughness. You would need to create this raster in a GIS or CAD software and import as an .ASC file. There should be instructions in the help manual
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