CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT > Fluent UDF and Scheme Programming

[ANSYS FLUENT] Ascertain a phase-change to a particular region in interior?

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

Like Tree1Likes
  • 1 Post By ehsan.bakhtiari

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 13, 2022, 11:57
Default [ANSYS FLUENT] Ascertain a phase-change to a particular region in interior?
  #1
New Member
 
ehsan bakhtiari
Join Date: May 2016
Posts: 13
Rep Power: 8
ehsan.bakhtiari is on a distinguished road
I want to simulate an ice accretion problem over a solid body.

The location at which ice appears and its height are defined via a DEFINE_GRID_MOTION macro.

The mesh displacement (according to the computed ice height) seems fine. However, since some of the regions over the body would address the presence of water over the ice (called Glaze Ice), I have no idea how to apply water presence on the ice and its temperature profile in these corresponding regions.

I tried to activate the VOF multiphase model and define the water as C_VOF(c,t) = 1.0 using a DEFINE_ADJUST macro. Still, I couldn't readily determine target cells in the interior domain perpendicular to the ice profile. Is my approach correct?

Any ideas would greatly be appreciated.
thapaashok likes this.
ehsan.bakhtiari is offline   Reply With Quote

Old   April 28, 2022, 11:16
Default
  #2
New Member
 
Ashok Thapa
Join Date: Apr 2022
Posts: 2
Rep Power: 0
thapaashok is on a distinguished road
Quote:
Originally Posted by ehsan.bakhtiari View Post
I want to simulate an ice accretion problem over a solid body.

The location at which ice appears and its height are defined via a DEFINE_GRID_MOTION macro.

The mesh displacement (according to the computed ice height) seems fine. However, since some of the regions over the body would address the presence of water over the ice (called Glaze Ice), I have no idea how to apply water presence on the ice and its temperature profile in these corresponding regions.

I tried to activate the VOF multiphase model and define the water as C_VOF(c,t) = 1.0 using a DEFINE_ADJUST macro. Still, I couldn't readily determine target cells in the interior domain perpendicular to the ice profile. Is my approach correct?

Any ideas would greatly be appreciated.
Hi Eshan,
i too am trying to simulate the ice formation from vapor(desublimation) over a solid plate. I was wondering if you have mangaed to find the solution. I am using multiphase VOF method but finding difficulty in adding ice(solid) as the phase in multiphase model.could you please let me know which module do you use? are you using any specific module for simulation of ice formation
i would highly appreciate if you could respond to the thread.
Thanks,
ashok
thapaashok is offline   Reply With Quote

Reply

Tags
define_adjust macro, fluent, fluent - udf

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Unable to patch Cell Registered Region to define phase for multiphase simulation allenpv Fluent Multiphase 1 February 14, 2021 12:19
Phase Change in VOF Evaporation/Condensation Models yoshiurr STAR-CCM+ 3 March 21, 2019 07:12
Material change during phase transformation (FePO4 > LiFePO4) concentration distribut kimsw0103 CFX 0 January 15, 2016 22:05
Simulation of Phase change material (PCM) and nanoparticles together farah Main CFD Forum 0 November 2, 2015 14:30
[Gmsh] Import gmsh msh to Foam adorean OpenFOAM Meshing & Mesh Conversion 24 April 27, 2005 08:19


All times are GMT -4. The time now is 10:55.