CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Setting a surface roughness on a wall

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Display Modes
Old   February 1, 2006, 02:57
Default Setting a surface roughness on a wall
Sandile Peta
Posts: n/a

I'm modelling a solar car in a wind tunnel in fluent and I'd like to know how I can create a surface roughness for one of the walls(ie. the bottom wall of the wind tunnel to simulate the road surface).
  Reply With Quote

Old   February 1, 2006, 03:57
Default Re: Setting a surface roughness on a wall
Posts: n/a
If you use any turbulence model, you will see in the boundary condition panel a line with "wall roughness"...fill it.

  Reply With Quote

Old   February 1, 2006, 05:39
Default Solution-Solve-Initialise
Sandile Peta
Posts: n/a
when clicking Solution-Solve-Initialise-compute from what is the best value of compute from to select, for instance in a wind tunnel model the options are: all-zones, car, velocity inlet, wall. Which would be the best for me to select in this case?

thanks sandile
  Reply With Quote

Old   February 1, 2006, 09:14
Default Re: Solution-Solve-Initialise
Ravi Duggirala
Posts: n/a
hi initialize from the velocity inlet. It seems the initialization might change your result and also the convergence rate. I will try initializing the velocity inlet to inlet velocity Ravi
  Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Surface roughness alefem FLOW-3D 6 June 3, 2010 12:49
Cells with t below lower limit Purushothama Siemens 2 May 31, 2010 21:58
Surface roughness in Flow-3d Marco FLOW-3D 2 December 23, 2008 22:12
wall temperature setting nianqi CFX 0 October 16, 2006 06:53
CFX4.3 -build analysis form Chie Min CFX 5 July 12, 2001 23:19

All times are GMT -4. The time now is 19:38.