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-   -   Joule heating and butler volmer rate in fluent (https://www.cfd-online.com/Forums/fluent/47591-joule-heating-butler-volmer-rate-fluent.html)

swapna March 12, 2008 13:10

Joule heating and butler volmer rate in fluent
 
Hi all,

I am dealing with a cfd model where current densities and ohmic heating terms are involved.I would like to know how to define these terms or related terms(JOule Heating and Butler Volmer Rate options) in FLUENT.

Thanks, Swapna

selvag March 13, 2008 00:28

Re: Joule heating and butler volmer rate in fluent
 
hi, you can use MHD module. for this you have to get separate license from fluent.

Alexander March 14, 2008 15:42

Re: Joule heating and butler volmer rate in fluent
 
You can solve the equation for electric potential and find the current density and Joul heating by solving additional equation for UDS (user defined scalar=potential). But you can have some difficulties in approximation of potential gradient at electrode boundaries.

Alexander


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