CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > General Forums > Main CFD Forum

problem about square duct.

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   December 29, 2003, 23:11
Default problem about square duct.
  #1
Bin Li
Guest
 
Posts: n/a
dear all

the full development turbulence in square duct is simulated with LES, Re=4800, Ma=0.3. the period BC is set in streamwise. in order to balance the friction of the wall, the gradient of pressure P is given, so the wall friction tau_w is solved from the formula. problem is that: the velocity along streamwise is biger and biger? why? the aveage velocity of one certain grid point is evaluated in four turnoff time of votex, is the time too little? another thing puzzled me, my bulk velocity is not change biger as the time going. in web, the useful results of the compressilbe square duct is very very few, even search by google. thanks a lot. yours sincerely Bin Li
  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
[Commercial meshers] Handling cyclic BC from gambit to openfoam for a cascade airfoil problem - OF 1.6 maverick OpenFOAM Meshing & Mesh Conversion 2 June 18, 2011 05:36
Velocity profiles problem behind the elbow (3D problem) kabat73 FLUENT 8 May 9, 2010 05:26
radiation problem for square cavity using fluent john Main CFD Forum 0 September 30, 2005 08:40
Periodic flow boundary condition problem sudha FLUENT 3 April 28, 2004 09:40
curved duct problem Fellouah FLUENT 0 December 9, 2002 10:23


All times are GMT -4. The time now is 03:51.