Disable flow computation in a precise zone

Mr.Tambourine · March 31, 2017, 03:39

hi everyone,

I would like to know if it is possible to deactivate the flow computation only in a precise zone of the mesh.

My problem is as folloows : i have a furnace whose atmosphere is considered not to move (convection is put aside).
However i need to be able to compute flow in other regions (molten silicium inside the furnace). For the moment, the atmosphere is considered as a solid to avoid the flow computation, but it raises other problems when i want to choose my radiation model...

Thanks in adavance !

LuckyTran · March 31, 2017, 22:01

In cell zone conditions, you can used the fixed option to force the velocity to fixed values. When variables are fixed, Fluent doesn't solve any transport equations and skips them.

Mr.Tambourine · April 3, 2017, 04:51

Great, thanks a lot !

March 31, 2017, 03:39	Disable flow computation in a precise zone	#1
Mr.Tambourine New Member Join Date: Mar 2017 Posts: 15 Rep Power: 10	hi everyone, I would like to know if it is possible to deactivate the flow computation only in a precise zone of the mesh. My problem is as folloows : i have a furnace whose atmosphere is considered not to move (convection is put aside). However i need to be able to compute flow in other regions (molten silicium inside the furnace). For the moment, the atmosphere is considered as a solid to avoid the flow computation, but it raises other problems when i want to choose my radiation model... Thanks in adavance !

March 31, 2017, 22:01		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,834 Rep Power: 68	In cell zone conditions, you can used the fixed option to force the velocity to fixed values. When variables are fixed, Fluent doesn't solve any transport equations and skips them. somebody1 and Mr.Tambourine like this.

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April 3, 2017, 04:51		#3
Mr.Tambourine New Member Join Date: Mar 2017 Posts: 15 Rep Power: 10	Great, thanks a lot !