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

Thermal phase change set up problem

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

Reply
 
LinkBack Thread Tools Display Modes
Old   March 22, 2012, 01:33
Default Thermal phase change set up problem
  #1
Senior Member
 
Danial
Join Date: Nov 2011
Posts: 179
Rep Power: 5
Danial Q is on a distinguished road
Hi Guyz,
i am working on some solidification model where one molten metal droplet is shot to other metal piece and phase chnage occurs and molten drolet solidifies after interphase heat transfer. I have defined homogeneous binary mixture for the molten droplet but i have some problems to run the solver which shows error like this,
"In Analysis 'Flow Analysis 1' - Domain 'splat' - Fluid 'user Ni': Equilibrium phase change in one phase in an MPF run is not supported by the solver."
could anyone please help to sort this out?? it is kind of global error and i am unable to resolve this uptill now.
mY idea is may be i am having some problem to define the saturation pressure and temperature for my homogeneous binary mixture. But problem sustains while this mixture is pure metal in (liquid/molten and solid form) defindind as homogeneous binary mixture. any help would be appreciated. i am solving this problem as free surface problem with homogeneous heat transfer model.
Danial Q is offline   Reply With Quote

Old   July 10, 2014, 14:41
Default
  #2
New Member
 
Mudassir
Join Date: Apr 2014
Location: Pakistan
Posts: 11
Rep Power: 3
Mudassir is on a distinguished road
Hi,
You have to define the material in both Solid (Say MetalSolid) and liquid phase( say MetalLiquid), and then make a homogeneous binary mixture (Say MetalSL) of these both materials.
Then if you want the Equilibrium Phase Change, Define use only MetalSG under Basic Settings> Fluid and Particle definition.
If you want Non Equil. Phase Change, define MetalS and MetalG under Basic Settings> Fluid and Particle definition.
The error you just asked about accurs when you use all three materials under Basic Settings> Fluid and Particle definition.

NOTE: For a phase change to occur, you must create all three materials as described in first paragraph. But not define all three in domain settings.

Regards
Mudassir 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
phase change with CFX aximefu CFX 5 March 28, 2012 03:38
mass flow in is not equal to mass flow out saii CFX 2 September 18, 2009 08:07
Unusual Three Phase Problem Michael CFX 2 October 21, 2008 06:39
Multiphase flow problem icedou FLUENT 6 July 10, 2005 02:52
Geometry setup for phase change problem Fred G. Kang Main CFD Forum 1 October 14, 1998 11:41


All times are GMT -4. The time now is 10:18.