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Coupling EP and EO in Transport of Diluted Species - no transport/coupling?
Posted 01.12.2017, 12:59 GMT-5 Electromagnetics, Microfluidics, Studies & Solvers Version 5.3 2 Replies
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I'm working on a simple electrophoresis separation system and running in to a problem where there is no apparent transport of my diluted species, either due to creeping flow (even though flow velocity is present and specified in the TDS module) or electrophoresis (even though a potential is calculated, electromigration is checked, with specified mobilities in the TDS module). Am I missing something about coupling? (Adding a multiphysics > Flow/Potential coupling component does not affect the solution.)
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Hello,
There may be more to it than this, but I noticed that your velocity at the inlet is on the order of 1 millimeter per second and your computational time is 10 seconds, so you can expect the species to move by about 1 centimeter. Your geometry is on the order of 500 meters long, making a small displacement difficult to observe. Perhaps you did not you mean for the geometry to be so large?
Jeff
-------------------Jeff Hiller
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Yikes! Supposed to be in 
... I usually change that in geometry, but must have overlooked it. Thanks!