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

multiphase

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

Reply
 
LinkBack Thread Tools Display Modes
Old   February 26, 2007, 06:15
Default multiphase
  #1
chak
Guest
 
Posts: n/a
2d model

outlet 10000000000001 10000000000001 43200000000001 43320000000001----wall(q=0) 12000000000001 10000000000001 10000000000001 10000000000001 10000000000001

i(v_inlet)

hi, iam using above 2d model to study the heat transfer coeffiecient over a 12221 arc that represent the tube and at the inlet 'i' a fluid is passing with upward velociy and the right 1's represents wall and zeros represents where fluid is passing and iam giving constant heat flux at 4411.

iam using multiphase model,mixture, k-e and i got better results(h-heat transfer coefficient) for lower part tube with experimental. But iam not getting for upper part of the tube.

to overcome this I have tried taking the whole model into two halve and using upper half where i am not good result i tried with eulerian model, and passing the values through profile of whole model with previous values of the mixture model at that region.

would u suggest me is it better way of doing it ..or there is any way to do it.

thank you,

please let me know ifany one knows abt it.

  Reply With Quote

Old   February 26, 2007, 06:39
Default Re: multiphase
  #2
chak
Guest
 
Posts: n/a
2d model

----------------------------------------------------------------------------------------------------------------------------- -10000000000001 --------------------------------------------- ---------------------------------------------------------------------------------------------------------------------------------------10000000000001 --------------------------------------------- ---------------------------------------------------------------------------------------------------------------------------------------43200000000001--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------43320000000001----wall(q=0) -----------------------------------------------------------------------------------------------------------------------------------------------------------------------12000000000001---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------10000000000001----------------------------------------------

i(v_inlet)

hi, iam using above 2d model to study the heat transfer coeffiecient over a 12221 arc that represent the tube and at the inlet 'i' a fluid is passing with upward velociy and the right 1's represents wall and zeros represents where fluid is passing and iam giving constant heat flux at 4411.

iam using multiphase model,mixture, k-e and i got better results(h-heat transfer coefficient) for lower part tube with experimental. But iam not getting for upper part of the tube.

to overcome this I have tried taking the whole model into two halve and using upper half where i am not good result i tried with eulerian model, and passing the values through profile of whole model with previous values of the mixture model at that region.

would u suggest me is it better way of doing it ..or there is any way to do it.

thank you,

please let me know ifany one knows abt it.

  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
Difference of multicomponent and multiphase homogenous flows Luk_Fiz CFX 11 April 4, 2013 05:29
Use data from multiphase into DO radiation yashmash FLUENT 0 October 7, 2011 03:57
Help: floating pressure, multiphase, closed domain memahfud FLUENT 1 September 24, 2009 03:38
multiphase multicomponent physics ckleanth CFX 3 June 4, 2009 20:15
Multiphase flow modeling Paul CFX 2 August 11, 2003 09:41


All times are GMT -4. The time now is 17:10.