How to create vacuum in Fluent

bourasOussama · June 1, 2017, 11:08

Hello All, How can vacuum be modeled in Fluent?

Thank you.

flotus1 · June 1, 2017, 11:12

You will have to be waaaay more specific to get a useful answer...

bourasOussama · June 1, 2017, 11:20

Hello,

I'm sorry .. I want to simulate a power coupler, inside the coupler there is the vacuum and outside there is air so I have to model the convection outside the coupler, the conduction in the material of the coupler and the radiation on the inside

So I will use the S2S model for radiation, but when I put nothing inside the coupler Fluent does not want to calculate the radiating faces so I need to model the vacuum

thank you

vijaybr1993 · July 25, 2018, 11:36

Dear, Bouras Oussama
i have same problem i am new in fluent i wanted to create vacuum, if you found he solution request you to assist me

Comi · July 26, 2018, 12:44

Mine it's just a guess but, you could try to set the density of the internal volume very close to zero. I'm not sure how the solver wil behave though...

June 1, 2017, 11:08	How to create vacuum in Fluent	#1
bourasOussama New Member Bouras Oussama Join Date: May 2017 Posts: 3 Rep Power: 10	Hello All, How can vacuum be modeled in Fluent? Thank you.

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June 1, 2017, 11:12		#2
flotus1 Super Moderator Alex Join Date: Jun 2012 Location: Germany Posts: 3,457 Rep Power: 50	You will have to be waaaay more specific to get a useful answer...

June 1, 2017, 11:20		#3
bourasOussama New Member Bouras Oussama Join Date: May 2017 Posts: 3 Rep Power: 10	Hello, I'm sorry .. I want to simulate a power coupler, inside the coupler there is the vacuum and outside there is air so I have to model the convection outside the coupler, the conduction in the material of the coupler and the radiation on the inside So I will use the S2S model for radiation, but when I put nothing inside the coupler Fluent does not want to calculate the radiating faces so I need to model the vacuum thank you

July 25, 2018, 11:36		#4
vijaybr1993 New Member asdf;lkj Join Date: Jul 2018 Posts: 6 Rep Power: 9	Dear, Bouras Oussama i have same problem i am new in fluent i wanted to create vacuum, if you found he solution request you to assist me

July 26, 2018, 12:44		#5
Comi Member Mattia Join Date: Mar 2018 Posts: 45 Rep Power: 9	Mine it's just a guess but, you could try to set the density of the internal volume very close to zero. I'm not sure how the solver wil behave though...