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-   -   Phase change material (https://www.cfd-online.com/Forums/fluent/240605-phase-change-material.html)

reslan January 14, 2022 15:04

Phase change material
 
Hi
i have two data one for solid phase and the other for the liquid phase, for example there is a liquid density and a solid density, the same for the Specific heat capacity, and the Thermal conductivity.
but in fluent, I can enter the parameters of a single-phase.
please, what can i do

mabdolahim January 15, 2022 01:14

Quote:

Originally Posted by reslan (Post 820250)
Hi
i have two data one for solid phase and the other for the liquid phase, for example there is a liquid density and a solid density, the same for the Specific heat capacity, and the Thermal conductivity.
but in fluent, I can enter the parameters of a single-phase.
please, what can i do

After enabling the "solidification/melting" model, you should define the material properties of both solid and liquid phases by the piecewise linear state of each property instead of the "constant" state.

reslan January 15, 2022 02:05

Thank you

How can i find piesewise of these properties
I search about these but i donot find
Can anyone give me piesewise of these properties for ppcm?

reslan January 15, 2022 02:07

I need piecewise of cp for pcm ? Please

mabdolahim January 15, 2022 11:07

Quote:

Originally Posted by reslan (Post 820267)
Thank you

How can i find piesewise of these properties
I search about these but i donot find
Can anyone give me piesewise of these properties for ppcm?


In "create/edit Materials" section, there is a drop-down menu for each property. There are several options such as constant, piecewise-linear, piecewise-polynomial, etc.


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