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

PCM boundary condition - Density variation with temperature

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 17, 2022, 16:42
Default PCM boundary condition - Density variation with temperature
  #1
New Member
 
Abhinay
Join Date: Feb 2015
Location: Bethlehem, Pennsylvania
Posts: 23
Rep Power: 11
soankerabhinay is on a distinguished road
I am trying to simulate Phase change energy storage model, which include melting and solidification of phase change material (PCM). Heat is transferred from heat transfer fluid to PCM (See picture attached). Since PCM is heated, density of pcm varies with temperature.

My question is, since my pcm mesh volume is constant, as pcm heats up density changes and pcm expands. I am currently using "wall" boundary condition which I think will not allow any expansion of pcm.

What is the appropriate PCM boundary condition to accommodate the expansion of PCM. I appreciate any help regarding this issue.

Thanks,
Abe
Attached Images
File Type: jpg cfdonline_pcm.jpg (29.9 KB, 7 views)
soankerabhinay is offline   Reply With Quote

Reply

Tags
boundary condition, fluent, pcm

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
Table bounds warnings at: END OF TIME STEP CFXer CFX 4 July 16, 2020 23:44
Question about adaptive timestepping Guille1811 CFX 25 November 12, 2017 17:38
Out File does not show Imbalance in % Mmaragann CFX 5 January 20, 2017 10:20
Boundary Condition for granular temperature Theta cheng1988sjtu OpenFOAM Programming & Development 4 July 4, 2016 16:08
Dynamic Temperature Boundary Condition Kshitij FLUENT 0 October 12, 2005 13:40


All times are GMT -4. The time now is 20:08.