[COMSOL_Users] values of thermophysical properties varying with temperature [1 Attachment]

[Rogerio Brito]

Good day,


I would like to impose on COMSOL the value of specific heat cp [J/(kg K)]
as a function of temperature. How do I do this?

I have the values of the thermal conductivity [W/(m K)] as a function of
temperature and I also have a thermal diffusivity [m^2/s] as a function of
temperature. The formula is: cp [J/(kg K)] (T) = K [W/(m K)] (T) / { pho
[kg/m^3] * alpha [m^2/ s] (T) }, where pho is the density and it is a
constant equal to pho [kg/m^3] = 7850. The temperature T is in Celsius
[degC].

I appreciate the attention.


Rogerio Fernandes Brito.`


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[akmal hidayat]

Hallo,

cp[J/(kg K)]= K(T[1/degC]) [W/(m K)]  / { pho[kg/m^3] * alpha(T[1/degC]) [m^2/ s] }


is it iron? or an "exotic" material? dont you have material library? 
regards
akmal




Rogerio Brito <***@gmail.com> schrieb am 13:46 Dienstag, 29.Oktober 2013:

 
[Attachment(s) from Rogerio Brito included below]




Good day, 


I would like to impose on COMSOL the value of specific heat cp [J/(kg K)] as a function of temperature. How do I do this? 

I have the values of the thermal conductivity [W/(m K)] as a function of temperature and I also have a thermal diffusivity [m^2/s] as a function of temperature. The formula is: cp [J/(kg K)] (T) = K [W/(m K)] (T) / { pho [kg/m^3] * alpha [m^2/ s] (T) }, where pho is the density and it is a constant equal to pho [kg/m^3] = 7850. The temperature T is in Celsius [degC].


I appreciate the attention.



Rogerio Fernandes Brito.`