mechanical input file for porous domain

Spaune · May 26, 2017, 07:36

Hello everyone.
My model contains multi-component porous domain. And solver can't start running because CFX-Pre says 'Multiple solid definitions are not supported'. I need to create mechanical input file,right? How do i create one? Can you guys give me an example?

ghorrocks · May 27, 2017, 05:16

Please post an image of what you are doing and your CCL.

Spaune · May 27, 2017, 07:40

that's it
i do not have ccl photo because the solver crashes with exit code 2 and 'Null pointer to m_geom' error

Opaque · May 27, 2017, 10:51

You are setting up the case incorrectly.

Please review the Reacting Flow tutorial to learn how to setup a multicomponent flow. Once familiar with it, review the Catalytic Converter tutorial to learn how to setup a porous solid domain.

You have setup the case as multiphase instead of multicomponent, and it is true ANSYS CFX only supports one "solid phase" per domain. It supports multiple "fluid phases" per domain, where a "fluid phase" may be a "multi-component mixture".

Hope the above helps,

Spaune · May 29, 2017, 12:23

thx for you reply,helped me a little bit, but i didn't really find how to create multi-component POROUS domain. am i missing it?

Spaune · May 29, 2017, 12:30

wait, should i just create new solid material with fixed composite mixture?

May 26, 2017, 07:36	mechanical input file for porous domain	#1
Spaune New Member Join Date: May 2017 Posts: 8 Rep Power: 8	Hello everyone. My model contains multi-component porous domain. And solver can't start running because CFX-Pre says 'Multiple solid definitions are not supported'. I need to create mechanical input file,right? How do i create one? Can you guys give me an example?

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May 27, 2017, 05:16		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	Please post an image of what you are doing and your CCL.

May 27, 2017, 07:40		#3
Spaune New Member Join Date: May 2017 Posts: 8 Rep Power: 8	that's it i do not have ccl photo because the solver crashes with exit code 2 and 'Null pointer to m_geom' error

May 27, 2017, 10:51		#4
Opaque Senior Member Join Date: Jun 2009 Posts: 1,804 Rep Power: 32	You are setting up the case incorrectly. Please review the Reacting Flow tutorial to learn how to setup a multicomponent flow. Once familiar with it, review the Catalytic Converter tutorial to learn how to setup a porous solid domain. You have setup the case as multiphase instead of multicomponent, and it is true ANSYS CFX only supports one "solid phase" per domain. It supports multiple "fluid phases" per domain, where a "fluid phase" may be a "multi-component mixture". Hope the above helps,

May 29, 2017, 12:23		#5
Spaune New Member Join Date: May 2017 Posts: 8 Rep Power: 8	thx for you reply,helped me a little bit, but i didn't really find how to create multi-component POROUS domain. am i missing it?

May 29, 2017, 12:30		#6
Spaune New Member Join Date: May 2017 Posts: 8 Rep Power: 8	wait, should i just create new solid material with fixed composite mixture?