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flux conservation in transport of diluted species

Posted Dec 2, 2014, 1:39 a.m. EST Microfluidics, Chemical Reaction Engineering, Electrochemistry Version 5.0 0 Replies

Charlotte Constans
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Dear community,

I am trying to modelize the transport of ions through a membrane with Electrostatics and Transport of Diluted Species. The model is composed of 2 water chambers at each side of the membrane and a short micro channel between the membrane and one chamber. An electric potential is applied on top of one water chamber and I measure the current generated by the flux of ions in the channel. My problem is that the integrated total flux differs from the sum of diffusion flux and electrophoretic flux, and each one is different at the beginning and at the end of the channel, even though there is a non-flux boundary condition on the edge of the channel...

Does anyone have any ideas?

Let me attach the file. The integrated currents are in derivated values (hole sup and hole inf are respectively the entrance and exit of the microchannel).

Thanks,
Charlotte
0 Replies Last Post Dec 2, 2014, 1:39 a.m. EST
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