CFD Online Logo CFD Online URL
Home > Forums > CFX

freezing multiphase

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

LinkBack Thread Tools Display Modes
Old   December 14, 2004, 05:14
Default freezing multiphase
Posts: n/a
Hi all,

How i can solve this problem ? I have mix from 2 components. One component condensed gas, and the second a not condensed impurity. The impurity has less than 5 %. Condensed gas freezes on a cooled surface. How correctly to describe this process? I have applied some methods. 1 method I create a material with spasmodic change of viscosity and heat conductivity at temperature of sedimentation, using function step, for an impurity the separate material is created. In this case calculation enough not bad describes process of freezing of a component. However I not absolutely understand as in this case to take into account heat of phase change, and calculation is not so stable. 2 method I create a homogeneous binary mix (HBM) from two materials, the first material gas, the second material a firm body. I set heat of phase change in properties of gas. In this case I can not add a material describing an impurity. CFX writes " in one domain there should be only one HBM " However in this case I have received an icicle Probably someone knows other ways?

Picture available at 2 method 1 method

Best regards Michael
  Reply With Quote


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
multiphase multicomponent physics ckleanth CFX 3 June 4, 2009 20:15
Freezing / Multiphase CFD Roger Yang CFX 0 November 30, 2006 10:54
Multiphase flow modeling Paul CFX 2 August 11, 2003 09:41

All times are GMT -4. The time now is 08:51.