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

what solver for 90° turbulent bender airflow

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

Reply
 
LinkBack Thread Tools Display Modes
Old   January 13, 2011, 13:51
Default what solver for 90° turbulent bender airflow
  #1
New Member
 
hhuh huhu
Join Date: Jan 2011
Posts: 9
Rep Power: 5
weigsi is on a distinguished road
Hi there,
i want to validate a airflow throw a 90° bender with high Re around 100000-200000, diameter 0,2m
eventually i have to define a rough wall afterwards but first i want to handle the problem in smooth mode...
is there any suggestion on wich solver i have to choose and if there is a solver how high/low y+ should be in this case?
thx for help
weigsi is offline   Reply With Quote

Old   January 15, 2011, 08:21
Default
  #2
Senior Member
 
Join Date: Oct 2009
Location: Germany
Posts: 637
Rep Power: 12
abdul099 is on a distinguished road
Which Y+ value you should maintain doesn't depend on the solver but on the turbulence model.
Low-re model = Y+ < 1
High-re model = 30 < Y+ < ~150
Two layer model = theoretically "arbitrary Y+ < 150", but avoid the range from lets say 2 to 20.

For other solver settings and a recommendation just have a look on the answer to your other post with the same topic from about 2 hours earlier.

By the way, there will be no faster answer when posting twice. Most people here will not earn money with posting hints and hence are not waiting the whole day for new posts. So it can take some time until a question is read by somebody who knows an answer.
abdul099 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
2D differentially heated cavity, which is appropriate solver? vetnav OpenFOAM 11 May 26, 2014 12:06
Stability problem due to turbulent dispersion force in a subcooled boiling model Edy OpenFOAM 7 August 10, 2011 12:00
CFX 5.5 Roued CFX 1 October 2, 2001 16:49
Setting a B.C using UserFortran in 4.3 tokai CFX 10 July 17, 2001 16:25
Error during Solver cfd guy CFX 4 May 8, 2001 06:04


All times are GMT -4. The time now is 12:41.