Learning Forum

[Noor_Zunair]

Hello All,

I'm currently working on the Battery simulation with Peltier used for cooling. I want to simulate the model on Fluent such that Peltier starts cooling when the cell temperature reaches 315K. I have defined an expression/ Function for Peltier temperature, which is attached in the picture. But when I Initialize it says Expressions not defined.

Kindly review that where can I be wrong? Whether the expression I have used defined is correct? or What changes I can try?

Thanks.

[Kishan Konannavar]

Hello
Can you please clarify what 'volave' is in your simulation? In case it refers to volume-average then I would suggest you to relook at the syntax. Please refer the following link.
5.1.1. Expression Syntax (ansys.com)
Thank you
Kishan