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Old   December 21, 2007, 05:04
Default Please help with simulation of PCM
  #1
rosol
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Dear all ,

I have to simulate the flow and heat transfer of phase change materials in fluent but I don't know how to do that in fluent what is the difference from the pure fluid and how to introduce the effect of phase change and the meltting of pcm since the energy equation is differ from the single fluid.

Please who know how to do that to help me because I need that urgently

Thanks alot
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Old   December 30, 2007, 07:18
Default Re: Please help with simulation of PCM
  #2
chaos_zzy
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Dear Rosol,

You can read FLUNT help about "solidification/melt" model and there is a case about "casting", told how to use it.

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Old   December 30, 2007, 13:36
Default Re: Please help with simulation of PCM
  #3
rosol
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Dear chaos thank you for your response,

My work is not on complete solidification i,e the fluid is suspension of water and microencapsulated pgase change material .the fluent help speaking about solidification of metals .please if you have an idea about that to help me.

Regards
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Old   January 1, 2008, 02:57
Default Re: Please help with simulation of PCM
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chaos_zzy
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Dear rosol,

I just begin to learn PCM simulation recently. I think maybe you can first calculate the PCM boundary condition in water, set PCM as solid,Then build PCM separately with boundary condition(obtain from first calculation).

Regards and Hayyp new year.

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Old   January 3, 2008, 07:47
Default Re: Please help with simulation of PCM
  #5
sudhir
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hello rosol and chaos,

im doing on project simulation of solidification of pcm.generally pcm have two density at different phases. how to incorporate this condition in fluent?
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Old   January 3, 2008, 20:59
Default Re: Please help with simulation of PCM
  #6
chaos
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Hello sudhir,

In fluent, you can set a polynomial(density vs temperature)to incoporate two density at different phases.

There are detailed explanation in fluent help at Modeling Solidification.
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Old   January 4, 2008, 11:00
Default Re: Please help with simulation of PCM
  #7
rosol
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In melting of pcm as I know the density of pcm is an avarage of liquid and solid phase .But in solidification I do not have enough information.

Regards

Rosol
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Old   January 7, 2008, 02:48
Default Re: Please help with simulation of PCM
  #8
sudhir
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thank u for ur informatin frnds.
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