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Simulation of non newtonian electroosmotic micro mixer
Posted 2014年9月15日 GMT-4 12:35 0 Replies
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I want to simulate a electroosmotic micro mixer with non-Newtonian fluid (blood) by power law model.
I use Comsol 3.5, this Comsol in non-Newtonian model have not electroosmotic velocity (wall as boundary condition) hence I define it as a sliding wall ,is it possible and correct?
Furthermore I define electroosmotic velocity in wall (that has constant zeta potential) for power law model according to this equation:
U_s=〖nk〗^((1-n)/n) 〖(-(εψ_w E_0)/m)〗^(1/n)
K: invers of Debye length, Kesi: zeta potential, E0: external electric field
(I find it in an exact solution of power law model in simple micro channel)
But I cannot give a result! I have attached my file. Also I have a problem in velocity direction in wall that i define as sliding wall : the velocity direction at up walls and down walls are opposite even at the first !and the velocity at the up walls is not in direction of the electric field.
I would really appreciate if somebody helps me.
Attachments:
Hello Samira Mostafavi
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