Electric arc modelling

stuart230588 · January 28, 2014, 06:41

Hi,

I am trying to simulate an electric arc but having trouble applying the boundary conditions.

I can get the simulation to work by applying a voltage difference to the anode and cathode surfaces, however I would like to have the load applied as a total current.

When I try to apply an electrical current (through the flux in option) in the electrical field, my model always fails. When I check my monitor points, the temperature has gone massively higher than it should (by a factor of about E8).

What is the best way to apply a total current source?

Thanks

kada · March 28, 2019, 08:45

Hi,

I am trying to simulate an electric arc between 02 contacts (anode/cathode) with fluent (MHD) but i having trouble applying the boundary conditions.
after separation of conatct , i have deference the potenc 48 v

ghorrocks · March 28, 2019, 17:47

Try the Fluent forum, this is the CFX forum. Also, don't forget to actually ask a question, your post does not actually ask a question.

January 28, 2014, 06:41	Electric arc modelling	#1
stuart230588 New Member Join Date: Oct 2013 Posts: 25 Rep Power: 13	Hi, I am trying to simulate an electric arc but having trouble applying the boundary conditions. I can get the simulation to work by applying a voltage difference to the anode and cathode surfaces, however I would like to have the load applied as a total current. When I try to apply an electrical current (through the flux in option) in the electrical field, my model always fails. When I check my monitor points, the temperature has gone massively higher than it should (by a factor of about E8). What is the best way to apply a total current source? Thanks kada likes this.

March 28, 2019, 17:47		#3
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,870 Rep Power: 144	Try the Fluent forum, this is the CFX forum. Also, don't forget to actually ask a question, your post does not actually ask a question. __________________ Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum.

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March 28, 2019, 08:45		#2
kada New Member kada Join Date: Feb 2019 Posts: 6 Rep Power: 7	Hi, I am trying to simulate an electric arc between 02 contacts (anode/cathode) with fluent (MHD) but i having trouble applying the boundary conditions. after separation of conatct , i have deference the potenc 48 v