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No Slip Walls

5 REPLIES 5
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Message 1 of 6
inventorlover
1069 Views, 5 Replies

No Slip Walls

Hi,

 

How would I add surface roughness to walls in a CFD analysis?  As far as I can tell, free slip is default.

 

Thank you!

5 REPLIES 5
Message 2 of 6
OmkarJ
in reply to: inventorlover

When you define materials for your domains, there is a option for it. Second last, if I remember correctly

 

OJ

Message 3 of 6
Royce_adsk
in reply to: inventorlover

By default all walls are considered no-slip (0 Velocity at the wall).  You can add extra roughness from there as indicated above.  From my perspective most industrial applications do not need this setting adjusted.

 

-Royce



Royce.Abel
Technical Support Manager

Message 4 of 6
IanGalang
in reply to: inventorlover

anyone can help?? pleasee

now, i;m confuse too, where to set a roughness wall, because i can't define the wall in boundary condition

 

thankss

Message 5 of 6
OmkarJ
in reply to: IanGalang

As indicated in the post above, when you define material for your domain, there is an option to specify wall roughness. You can't define wall in boundary condition because any unspecified surface is no-slip wall with zero roughness by default

 

You can always find information, if you look in help documentation:

http://wikihelp.autodesk.com/Simulation_CFD/enu/2013/Help/0138-The_Proc138/0230-Setup_Ta230/0236-Mat...

 

OJ

Message 6 of 6
IanGalang
in reply to: OmkarJ

thanks omkar, i found it

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