non-uniform surface roughness in FLOW3D

Bienviet · January 1, 2018, 05:54

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.

bfox48 · January 3, 2018, 10:23

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

January 1, 2018, 05:54	non-uniform surface roughness in FLOW3D	#1
Bienviet New Member Hugo Join Date: Jan 2018 Posts: 2 Rep Power: 0	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.

January 3, 2018, 10:23		#2
bfox48 New Member brian Join Date: Apr 2012 Posts: 25 Blog Entries: 1 Rep Power: 14	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 Bienviet likes this.

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