Learning Forum

[Luis Pusey-Alvarado]

Hello,

 

I'm trying to solve the following issue.

 

I have an aluminum wire in a fluid domain.

 

I am applying 18 volts on one side of the wire. the electric resistance changes with temperature change according to this formula : 𝑅=𝑅01+𝛼(𝑇−𝑇0)R=R_0 (1+α(T-T_0)) where Temperature Coefficient: 0.002 1/K and Resistance at 20°C: 11.23 Ohm.

 

in Fluent material properties for aluminum I have to add electric conductivity, there is no option to add the resistance. How can I write the electric conductivity as an expression with a varying resistance with the formula above?

 

Thanks!  

[Murari Iyengar]

Hi, Under Electrical Conductivity options, you can select Expression and then input the expression as required.