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High discrepancy between results of one quantity for the specific Boundary Condition

Posted Sep 17, 2017, 3:23 a.m. EDT Low-Frequency Electromagnetics, Microfluidics 0 Replies

Akbar Samadi
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Hello Everybody,

I have used two physics (AC/DC and Laminar flow module) in my model to simulate the velocity profile of electro-osmotic flow in 2d micro chamber.

I wanted to set a velocity ac B.C for my wall which was defined in terms of x component of electric field (E field was computed in first run using AC/DC module)

x component of velocity =mu*ec.Ex ; (mu is electroosmotic velocity)

When I plotted mu*ec.Ex for the specific boundary (wall e.g.) and then ran laminar flow physics and plotted u (x component of velocity in the second run), they are not the same.

Because the boundary I chose to plot velocity was the same, I expected the results would be the same.

Would you please help me on this? Is the way I'm thinking wrong?

Thanks in advance,

0 Replies Last Post Sep 17, 2017, 3:23 a.m. EDT
COMSOL Moderator

Hello Akbar Samadi

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