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-   -   Questions about Cross-WLF viscosity model in interHeatFoam (http://www.cfd-online.com/Forums/openfoam-solving/69367-questions-about-cross-wlf-viscosity-model-interheatfoam.html)

awacs October 20, 2009 22:27

Questions about Cross-WLF viscosity model in interHeatFoam
 
2 Attachment(s)
Dear Foamers,

Is there anybody using the Cross-WLF viscosity model in OpenFOAM? I want to investigate the polymer melt flow behavier in injection molding process. The Cross-WLF viscosity model can be described as follows:

Attachment 1330

Attachment 1331

I have added this model to OF-1.5-dev. When running interHeatFoam (adding T.Eqn to interFoam) solver with
the Cross-WLF viscosity model, the courant number increased enormously after a few steps.Then the calculation stopped.

Any advice from anyone will be appreciated.

Kind regards,
Jitao

chiven October 21, 2009 02:10

I am also struggling with the interHeaFoam, but not the Cross-WLF viscosity model. It is a difficult time.

Good luck to you.
chiven


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