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-   -   difference between interface compression and interface reconstruction (http://www.cfd-online.com/Forums/cfx/126570-difference-between-interface-compression-interface-reconstruction.html)

Niru November 20, 2013 19:43

difference between interface compression and interface reconstruction
 
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.

Niru November 20, 2013 19:45

interface drag in homogeneous free surface model
 
why is interface drag not modelled in homogeneous free surface model.

ghorrocks November 21, 2013 04:02

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.

Niru January 5, 2014 14:01

compresive scheme
 
Can you please explain me how compressive scheme for volume fraction works in CFX. Are there any related equations.

ghorrocks January 12, 2014 06:11

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.

Niru January 20, 2014 16:05

Quote:

Originally Posted by ghorrocks (Post 469660)
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.

Ok, I got the details of the model. Thanks.


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