Mold Filling Simulation, Multiflow, Porous Media

rainer_kit · June 11, 2014, 09:43

Hi,
I am doing a molding simulation of a carbon fibre filled cavity that is filled with Resin.
I want so simulate the filling process of a cavity. This cavity I filled with carbonfibre of a specific permeability.
So I modeled a porous domain and a multiflow (Air and Resin) through this domain.
As initial condition the cavity is filled with Air (100%) and through the inlet only Resin enters the cavity.
I simulate with a transient simulation with total time=10s, timestep=0.1s and starting time=0s

My Problem is:
In post processing, when having a look volume fraction at the first time step the cavity is already to almost 90 filled with Resin.
How is that possible? I inject Resin at 20g/s and my cavity is large enough to be not filled in a tenth of a second.
The simulation takes place at ambient pressure.

Thank you for your help

EDIT:
For some reason the Problem seems to be solved now although I only changed an insignificant parameter.

samiam1000 · February 6, 2015, 03:39

Do you think it's possible to do the same using OpenFOAM?

ghorrocks · February 6, 2015, 04:45

No idea. This is the CFX forum. Try the openfoam forum.

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February 6, 2015, 03:39		#2
samiam1000 Senior Member Samuele Z Join Date: Oct 2009 Location: Mozzate - Co - Italy Posts: 520 Rep Power: 19	Do you think it's possible to do the same using OpenFOAM?

February 6, 2015, 04:45		#3
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,871 Rep Power: 144	No idea. This is the CFX forum. Try the openfoam forum.