Electrical contact resistance

lsa2011 · October 4, 2016, 15:55

How to implement a electrical contact resistance at the interface in Fluent?

Thank you!

LuckyTran · October 6, 2016, 00:45

Are you using an MHD add-on or something? Fluent does not solve electricity!

Or do you mean a thermal contact resistance, which is analogous to electrical contact resistance?

At the wall or interface, you must specify a material property and wall thickness. The default material is aluminum and default wall thickness is 0 (for no contact resistance). You need to specify the wall thickness and material to appropriate values to get the desired contact resistance.

lsa2011 · October 6, 2016, 05:55

I defined a potential equation using UDS.
Now i want to add the electrical contact resistance at the interface between two materials.
Thermal contact resistance is already available in Fluent.
I don't know how to implement electrical contact resistance using udf.

diogoloureiromartinho · March 31, 2023, 07:43

Hi all,

Did any of you manage this question that could explain a bit how it was done?

Kind regards

October 4, 2016, 15:55	Electrical contact resistance	#1
lsa2011 New Member shian Join Date: Sep 2015 Posts: 2 Rep Power: 0	How to implement a electrical contact resistance at the interface in Fluent? Thank you!

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October 6, 2016, 00:45		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,667 Rep Power: 65	Are you using an MHD add-on or something? Fluent does not solve electricity! Or do you mean a thermal contact resistance, which is analogous to electrical contact resistance? At the wall or interface, you must specify a material property and wall thickness. The default material is aluminum and default wall thickness is 0 (for no contact resistance). You need to specify the wall thickness and material to appropriate values to get the desired contact resistance.

October 6, 2016, 05:55		#3
lsa2011 New Member shian Join Date: Sep 2015 Posts: 2 Rep Power: 0	I defined a potential equation using UDS. Now i want to add the electrical contact resistance at the interface between two materials. Thermal contact resistance is already available in Fluent. I don't know how to implement electrical contact resistance using udf.

March 31, 2023, 07:43		#4
diogoloureiromartinho New Member Diogo Martinho Join Date: Sep 2022 Posts: 6 Rep Power: 3	Hi all, Did any of you manage this question that could explain a bit how it was done? Kind regards