Who wrote settlingFoam?

Randal · January 19, 2014, 15:46

I am a new user of OpenFOAM but very familiar with CFD for settling problems. I have written my own 2D Fortran code for this problem solving the flow field using a Patankar scheme with a k-epsilon turbulence model. The solids settling and transport in this code are handled using a two-way (density-coupled) scalar transport equation, rather than a two-fluid approach. I am trying to develop some understanding of the settlingFoam tutorial. I have been able to run both the 2D and 3D versions of this and view the results in paraView. I don't see any indication of solids concentrations in the paraView displays. My understanding was that this code was "multi-phase". All I see in the paraView parameters is velocity, no solids. I would love to communicate with someone who is expert in this code, preferably the developer. Please reply here if you can help.

Posso · January 27, 2014, 16:40

Hi Randal.

Did you see the Daniel Brennan's thesis? Is not difficult to found.
Look chapters 6.4 (Dahl) and 7 (tank3D). I think alfa is fraction of solids.

Greetings.

Randal · January 27, 2014, 22:16

Posso,

Thanks so much. Yes, I had seen Brennan's thesis. It doesn't say a word about OpenFOAM. I have finally figured out how to display solids as "alpha" in ParaView. Little steps for little feet.

Regards,

Randal

ngj · January 28, 2014, 03:34

Good morning Randal,

The code was still called FOAM back then, and that name is mentioned in the acknowledgement.

Good luck,

Niels

Randal · January 28, 2014, 09:29

Niels,

You are quite right, and "settlingFoam" is mentioned (once) in the text. Thanks.

Randal

January 19, 2014, 15:46	Who wrote settlingFoam?	#1
Randal New Member Randal Samstag Join Date: Nov 2013 Location: Bainbridge Islaned, WA Posts: 3 Rep Power: 13	I am a new user of OpenFOAM but very familiar with CFD for settling problems. I have written my own 2D Fortran code for this problem solving the flow field using a Patankar scheme with a k-epsilon turbulence model. The solids settling and transport in this code are handled using a two-way (density-coupled) scalar transport equation, rather than a two-fluid approach. I am trying to develop some understanding of the settlingFoam tutorial. I have been able to run both the 2D and 3D versions of this and view the results in paraView. I don't see any indication of solids concentrations in the paraView displays. My understanding was that this code was "multi-phase". All I see in the paraView parameters is velocity, no solids. I would love to communicate with someone who is expert in this code, preferably the developer. Please reply here if you can help. Last edited by Randal; January 19, 2014 at 21:40.

January 27, 2014, 22:16	Found it	#3
Randal New Member Randal Samstag Join Date: Nov 2013 Location: Bainbridge Islaned, WA Posts: 3 Rep Power: 13	Posso, Thanks so much. Yes, I had seen Brennan's thesis. It doesn't say a word about OpenFOAM. I have finally figured out how to display solids as "alpha" in ParaView. Little steps for little feet. Regards, Randal

January 28, 2014, 03:34		#4
ngj Senior Member Niels Gjoel Jacobsen Join Date: Mar 2009 Location: Copenhagen, Denmark Posts: 1,903 Rep Power: 37	Good morning Randal, The code was still called FOAM back then, and that name is mentioned in the acknowledgement. Good luck, Niels __________________ Please note that I do not use the Friend-feature, so do not be offended, if I do not accept a request.

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January 27, 2014, 16:40		#2
Posso New Member Join Date: Sep 2013 Posts: 1 Rep Power: 0	Hi Randal. Did you see the Daniel Brennan's thesis? Is not difficult to found. Look chapters 6.4 (Dahl) and 7 (tank3D). I think alfa is fraction of solids. Greetings.

January 28, 2014, 09:29		#5
Randal New Member Randal Samstag Join Date: Nov 2013 Location: Bainbridge Islaned, WA Posts: 3 Rep Power: 13	Niels, You are quite right, and "settlingFoam" is mentioned (once) in the text. Thanks. Randal