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Forum: Fluent Multiphase

March 1, 2020, 06:15

Replies: 16

Degassing boundary condition requirements?

Views: 3,105

Posted By Per_Holmgren

I'm simply trying to write code that sets the...

I'm simply trying to write code that sets the mass flow out of a given boundary equal to the difference between the other mass flow in/outlets.

Using F_FLUX to apply the value I'm after works fine...

Forum: Fluent Multiphase

March 1, 2020, 05:23

Replies: 16

Degassing boundary condition requirements?

Views: 3,105

Posted By Per_Holmgren

Thanks again, I agree the code looked pretty bad...

Thanks again, I agree the code looked pretty bad as it was. It was sort of devolving as time went along and I tried more and more things to get it work. It started as a define_profile function, but...

Forum: Fluent Multiphase

February 29, 2020, 06:51

Replies: 16

Degassing boundary condition requirements?

Views: 3,105

Posted By Per_Holmgren

Thanks! Yes, gas has ID=2, solids ID=3. And as...

Thanks! Yes, gas has ID=2, solids ID=3. And as said, I have no problems reading the faces for the solids (ID=3).

I tried changing the subdomains from 0 and 1 to 1 and 2, but then got an immediate...

Forum: Fluent Multiphase

February 29, 2020, 05:54

Replies: 16

Degassing boundary condition requirements?

Views: 3,105

Posted By Per_Holmgren

After the good advice given, I changed my...

After the good advice given, I changed my approach. I have managed to get all my inlets and outlet to have the correct massflow (either in our out), and my gas outlet 'almost' works. I think I have...

Forum: Fluent Multiphase

February 21, 2020, 15:22

Replies: 16

Degassing boundary condition requirements?

Views: 3,105

Posted By Per_Holmgren

But now I run into an immediate issue. I'm trying...

But now I run into an immediate issue. I'm trying to do a Eulerian multiphase simulation, where one phase is hot gas, the other is a slow moving packed bed of rocks that is reacting with the gas flow...

Forum: Fluent Multiphase

February 21, 2020, 09:48

Replies: 16

Degassing boundary condition requirements?

Views: 3,105

Posted By Per_Holmgren

Again, thanks a lot, I had totally missed that...

Again, thanks a lot, I had totally missed that quite important detail!

Forum: Fluent Multiphase

February 21, 2020, 07:14

Replies: 16

Degassing boundary condition requirements?

Views: 3,105

Posted By Per_Holmgren

Thanks! It's kinda odd that it did work for like...

Thanks! It's kinda odd that it did work for like 50k iterations with the gas as primary and fluid as secondary, but then again it did always crash so I'll try flipping them around. Again, thanks for...

Forum: Fluent Multiphase

February 21, 2020, 03:45

Replies: 16

Degassing boundary condition requirements?

Views: 3,105

Posted By Per_Holmgren

Hejhej. Thanks for the reply, but my issue is...

Hejhej.
Thanks for the reply, but my issue is that when I run my simulation the primary phase passes through (as intended), and the secondary phase is retained (as intended), but after a while the...

Forum: Fluent Multiphase

October 6, 2019, 08:31

Replies: 16

Degassing boundary condition requirements?

Views: 3,105

Posted By Per_Holmgren

Degassing boundary condition requirements?

Hi. I'm doing a euler-euler packed bed reaction.
I want to have an open outlet for my primary phase, and the degassing boundary should by what I have read work perfectly for something as simple as...

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