[efsolat]

Hi dear foamers,
I want to simulate the diffusion of two phase-flow within a porous-walled cylinder and evaluate the concentration of the second (solute) flow outside of the cylinder wall. In other words, a fixed velocity flow is permanently input into the cylinder and after a while (e.g. 10 min) a second flow (e.g. an ink) is transiently injected (with a velocity lower than that of the first flow) into the cylinder.
I don't know how to do it step by step!
Can somebody please give suggestions about the steps to do it or provide information about the helpful tutorials in this case.
Any idea or help would be of great appreciation.


Regards
Efsolat