Comments (9)
Yup, thanks. Knock yourself out! I think the later versions of OF Foundation have consolidated around reactingMultiphaseEulerFoam's I/O format so might be worth looking at that as a base. But I'm not sure so do go ahead as you see fit.
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see #163
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@oliveroxtoby If one considers reactingMultiphaseEulerFoam
, it seems there are a lot of options and opportunities. I wonder if we should limit this to some kind of graduated introduction. (ie i believe you can have single phase
reactions as well as multiphase
in OF, so how do we want to go about this?
Perhaps we implement reactions
for just reactingMultiphaseEulerFoam
first (only), and then expand things. Or, should we stick to straightforward non-reacting
Eulerian MF to begin with ... ?
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Actually, @oliveroxtoby it looks like a lot of these separate solvers have been amalgamated into multiphaseEulerFoam
, so I guess we go just with this at the moment. Then we can look at buoyantReactingFoam
and all the rest.
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Yes, I definitely wouldn't actually add any reacting flow at this stage. multiphaseEulerFoam is complex enough as it is.
Sorry, my comment was a bit misleading, what I meant was that the new consolidated multiphaseEulerFoam in Foundation 11 is, I think, based around the case format of the reactingMultiphaseEulerFoam in earlier Foundation versions and in the OpenCFD versions. I wasn't intending to suggest you actually support reactions.
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Yes, I definitely wouldn't actually add any reacting flow at this stage. multiphaseEulerFoam is complex enough as it is.
Sorry, my comment was a bit misleading, what I meant was that the new consolidated multiphaseEulerFoam in Foundation 11 is, I think, based around the case format of the reactingMultiphaseEulerFoam in earlier Foundation versions and in the OpenCFD versions. I wasn't intending to suggest you actually support reactions.
Hi @oliveroxtoby ok ... i guess i have implemented the basics of simple reactions in multiphaseEulerFoam
. It seems quite tractable - do you want to take a look first?
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A further comment here @oliveroxtoby , I agree with the above actually. The reactions part is going to need a lot of additional stuff to allow for the configurations and reaction definitions, unless we just used some default stuff.
On the basic Eulerian stuff though, did you have any thoughts about how configuration for the dispersed phase and interaction could be done? There are again a lot of options. To me, it seems the best option is to add a Phases
or Phase Physics
or Eulerian Physics
option on the menu, and require this before writing the Case file (throw an error if its missing, similar to how a error is thrown if VOF is selected and there i only x1 fluid object).
There is too much required to try to jam this into the existing Physics Selection
object ... imho
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There is too much required to try to jam this into the existing
Physics Selection
object ... imho
Yes, I don't think the right place for this is 'Physics Selection'. I would suggest putting phase-specific settings (e.g. diameter model) into the material properties specification for each phase. I would also put inter-phase properties under the material properties, but under an additional selection of the 'other phase'. (That would also be the home for surface tension for VOF - it can't be specified at all currently.)
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Yes, I don't think the right place for this is 'Physics Selection'. I would suggest putting phase-specific settings (e.g. diameter model) into the material properties specification for each phase.
Ok. Nice idea, that works well.
I would also put inter-phase properties under the material properties, but under an additional selection of the 'other phase'. (That would also be the home for surface tension for VOF - it can't be specified at all currently.)
Ok, I'll see what I can figure out ... so for multiphase, the user specifies at least x1 additional Material, which then populates interphase properties in the bottom of the current Material Properties object? Something like that?
For specifying the lift
, drag
, and other forces etc, I have created an Phase physics model
object (similar to the Dynamic Mesh objects) which fits quite nicely under the main Physics Model
object. It seems to work quite nicely and looks pretty good!
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