CFD Online Logo CFD Online URL
Home > Forums > FLUENT

melting PCM

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

LinkBack Thread Tools Display Modes
Old   June 19, 2012, 09:44
Default melting PCM
New Member
Join Date: Jun 2012
Posts: 1
Rep Power: 0
maherm is on a distinguished road
I’m trying to investigate the melting process of phase change material (PCM) and the enhancement of heat transfer by using metal particles. However, I try to investigate the heat transfer enhancement in the model by mixing the PCM bulk. The particle size is in the order of nano-meter, so DMP is not suitable for this problem.
So as a summery we can say that “solid PCM with nano metal particles” transfer to “liquid PCM with also nano metal particle”, and no melting of metal is happened as melting point is high for metal.

One way of doing this is to change the thermal properties (density, k and Cp) of both “solid wax” and “liquid wax” depending upon concentration of metal particles. So I was thinking if there is other way to define the physical properties of the PCM with the particles by write c-code and use user defined function (USF).
Say “volumetric” concentration of metal is v per unit volume of mixture, so Cp will be,
Cp_mixture = Cp_wax*(1-v) + Cp_metal*v

I would be grateful if you can help me to write the C-code and defined it in Fluent.
maherm is offline   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
How can I make the solid PCM to sink to the bottom as it melts? Lim FLUENT 6 December 22, 2014 03:29
melting + vof modeeling for PCM in air taw FLUENT 1 March 19, 2014 16:49
urgent need in simulating the PCM rosol FLUENT 2 September 22, 2010 08:14
PCM melting inside the Al cavity shoxan FLUENT 0 August 6, 2010 12:56
melting of pcm in cylindrical annnulus? birol FLUENT 0 December 31, 2008 08:42

All times are GMT -4. The time now is 02:58.