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

boundary conditions

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

Reply
 
LinkBack Thread Tools Display Modes
Old   March 23, 2011, 04:48
Unhappy boundary conditions
  #1
New Member
 
abdul azis
Join Date: Feb 2011
Location: semarang, indonesia
Posts: 9
Rep Power: 7
AbdulAzis is on a distinguished road
velocity inlet turbulence, specification method for sedan geometry on wind tunel,,turbulenct intensiity value and turbulent length scale for value at velocity inlet?how much i predict this value??

and the outlet???
please help...
AbdulAzis is offline   Reply With Quote

Old   March 23, 2011, 08:04
Default
  #2
Member
 
Robert
Join Date: Mar 2011
Location: Warsaw
Posts: 62
Rep Power: 7
Kwiaci is on a distinguished road
Prowide us with some more detailed data. What type of wind tunel is this? What is air speed. Turbulence modeling is always very baffling.
Kwiaci is offline   Reply With Quote

Old   March 24, 2011, 03:44
Unhappy detail data
  #3
New Member
 
abdul azis
Join Date: Feb 2011
Location: semarang, indonesia
Posts: 9
Rep Power: 7
AbdulAzis is on a distinguished road
i use the bmw 320i sedan for my basic geometry,the valid Cd is 0,26, i want use viscous model k-omega SST,,velocity magnitud 25-30 m/s.. area = 2.08 m2, length wind tunel = 23.32 m, turbulence specification method = intensity and length scale,,but i don't know the value T I and Length scale must i predict..to get Cd 0,26,, and than i redesign the sedan geometry for get optimal value Cd,,this for my thesis,,please help...
AbdulAzis is offline   Reply With Quote

Reply

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
Impinging Jet Boundary Conditions Anindya Main CFD Forum 25 February 27, 2016 13:58
symmetry boundary conditions in cfx lost.identity CFX 41 May 22, 2013 07:21
boundary conditions and mesh exporting vaina74 Open Source Meshers: Gmsh, Netgen, CGNS, ... 2 May 27, 2010 09:38
Pressure boundary conditions Lionel S. Main CFD Forum 1 August 24, 2007 18:03
Trimmed cell and embedded refinement mesh conversion issues michele OpenFOAM Other Meshers: ICEM, Star, Ansys, Pointwise, GridPro, Ansa, ... 2 July 15, 2005 04:15


All times are GMT -4. The time now is 17:26.