CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT

Pipe Roughness in Laminar Flow

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   October 7, 2005, 02:32
Default Pipe Roughness in Laminar Flow
  #1
Swarup
Guest
 
Posts: n/a
Hi All,

How can I model roughness effects in laminar flow conditions? Any advice is greatly appreciated.

Swarup.
  Reply With Quote

Old   October 7, 2005, 09:40
Default Re: Pipe Roughness in Laminar Flow
  #2
Arunvel
Guest
 
Posts: n/a
In IDEAS ESC there is a straight forward option by the name "Surface Roughness" andso exit velocity is a function of this parameter - I have seen the effects well in a pipe flow, it would obey darcy's equation very well - turbulence models need to be good (like RNG(Fluent), SST (CFX)) to predict the effect in turbulent region I think.

  Reply With Quote

Reply


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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
High speed compressible flow through pipe Munni Main CFD Forum 6 December 7, 2015 11:33
Laminar Pipe Flow convergence issues preichl OpenFOAM Running, Solving & CFD 11 September 22, 2014 21:22
Using a turbulent model when the flow is entirely laminar. mwhyte FLUENT 1 June 7, 2012 10:35
gravitational acceleration in laminar pipe flow atmcfd ANSYS 0 January 4, 2010 22:19
Surface roughness in laminar flow carno FLUENT 4 August 19, 2007 15:52


All times are GMT -4. The time now is 09:06.