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-   -   Directional thermal conductivity for PCB (https://www.cfd-online.com/Forums/fluent-udf/218869-directional-thermal-conductivity-pcb.html)

sunilpatil July 8, 2019 00:58

Directional thermal conductivity for PCB
 
Hi all,
I am modeling PCB with a heat source, I want to assign thermal conductivity of PCB as directional dependent i.e Kx in X-direction, Ky in Y-direction and Kz in Z-direction. How to define this in Fluent, if it is required to write UDF then please provide me an example UDF.


Thank you in advance

AlexanderZ July 8, 2019 07:22

use orthotropic material property instead of constant value. You don't need UDF

best regards

sunilpatil July 8, 2019 22:06

Thank you for your reply, I will try it today.


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