3D printing of hull roughness

bhanu.prakash191 · March 13, 2018, 07:46

Hello everyone!

Can anyone suggest me how to create roughness on the hull so that I can use it for running simulation in Numeca?

Thanks in advance.

Rodrigo Correa · November 13, 2019, 07:18

Hello,

You can set the sand grain height for solid patchs when defining the boundary conditions. You can either specify a single value for all patches or per-patch. One example where you could define it per patch: Calculation of light running marging of an aged hull and propeller (or presence of fouling). You could add different wall roughness on hull and propeller patches.

Rodrigo

March 13, 2018, 07:46	3D printing of hull roughness	#1
bhanu.prakash191 New Member bhanu Join Date: Mar 2018 Posts: 1 Rep Power: 0	Hello everyone! Can anyone suggest me how to create roughness on the hull so that I can use it for running simulation in Numeca? Thanks in advance.

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November 13, 2019, 07:18		#2
Rodrigo Correa New Member Rodrigo Join Date: Jul 2015 Posts: 18 Rep Power: 10	Hello, You can set the sand grain height for solid patchs when defining the boundary conditions. You can either specify a single value for all patches or per-patch. One example where you could define it per patch: Calculation of light running marging of an aged hull and propeller (or presence of fouling). You could add different wall roughness on hull and propeller patches. Rodrigo