Variable boundary

upuli · March 29, 2016, 03:20

Dear All
I want to model a cylindrical particle(biomass) which has its boundary varying with time. How can I do this in OpenFOAM?

marupio · March 29, 2016, 12:55

You say 'particle' and that can be confusing because OF has particle models, but they are point models (i.e. physical volume is not directly represented).

You can do something with a scalar with 0=non-solid, and 1=solid, similar to alpha in OF's VOF solvers. I also recall there was an application called 'settlingFoam' that modelled the accumulation of particles on the bottom of the domain. You may want to look into how that does it.

I'm not sure of what other interface tracking methods OF has.

upuli · March 30, 2016, 01:22

Dear Marupio
Thank you for your reply. In this particle is not a point. It is considered as a separate phase(solid phase).

March 29, 2016, 03:20	Variable boundary	#1
upuli Member Upuli Join Date: Feb 2016 Posts: 68 Rep Power: 10	Dear All I want to model a cylindrical particle(biomass) which has its boundary varying with time. How can I do this in OpenFOAM?

March 29, 2016, 12:55		#2
marupio Senior Member David Gaden Join Date: Apr 2009 Location: Winnipeg, Canada Posts: 437 Rep Power: 21	You say 'particle' and that can be confusing because OF has particle models, but they are point models (i.e. physical volume is not directly represented). You can do something with a scalar with 0=non-solid, and 1=solid, similar to alpha in OF's VOF solvers. I also recall there was an application called 'settlingFoam' that modelled the accumulation of particles on the bottom of the domain. You may want to look into how that does it. I'm not sure of what other interface tracking methods OF has. __________________ ~~~ Follow me on twitter @DavidGaden

March 30, 2016, 01:22	Variable boundary	#3
upuli Member Upuli Join Date: Feb 2016 Posts: 68 Rep Power: 10	Dear Marupio Thank you for your reply. In this particle is not a point. It is considered as a separate phase(solid phase).

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