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difference between interface compression and interface reconstruction |
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#1 |
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niru
Join Date: Apr 2012
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In CFX, the free surface model with surface tensio force used interface compression. How is this different from interface reconstruction like PLIC algorithm. Can know the pros and cons of both.
What software uses interface reconstruction and compression. |
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#2 |
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niru
Join Date: Apr 2012
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why is interface drag not modelled in homogeneous free surface model.
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#3 |
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Glenn Horrocks
Join Date: Mar 2009
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CFX uses a compressive scheme for the volume fraction. It does not have a reconstruct scheme like Fluent does.
There is no interface drag in homogenous flow - both phases by definition are moving with no relative slip because they are homogeneous! That is why there is no interface drag model. |
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#4 |
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niru
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Can you please explain me how compressive scheme for volume fraction works in CFX. Are there any related equations.
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#5 |
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Glenn Horrocks
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I am not sure if it is in the documentation. If you cnanot find it then ask ANSYS support. I think the ANSYS CFX multiphase training course also covers it.
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#6 |
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niru
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#7 |
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Maximilian
Join Date: Feb 2016
Location: RLP, Germany
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So far as I know uses ANSYS the CICSAM method for reconstructing the free surface. but I'm not 100 percent safe
here the link: PHP Code:
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#8 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
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No, this is not correct. ANSYS CFX uses the compressive scheme (as mentioned previously in this thread).
ANSYS Fluent has CICSAM as an available option, you might be confused with that. |
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#9 |
New Member
Maximilian
Join Date: Feb 2016
Location: RLP, Germany
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Oh sorry for my mistake. I should read before i post something.
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Tags |
interface compression, plic, vof, volume fraction |
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