423355 Determination of Effective Diffusion Coefficient in Divergent Channel: Area Averaging Approach

Wednesday, November 11, 2015: 9:20 AM
252A/B (Salt Palace Convention Center)
Abbas Motamedilamouki1, Parvin Golbayani1, J. Robby Sanders1 and Pedro E. Arce2, (1)Chemical Engineering, Tennessee Technological University, Cookeville, TN, (2)Chemical Engineering, TENNESSEE TECHNOLOGICAL UNIVERSITY, Cookeville, TN

In this contribution, the long term goal includes the use of the an area-averaging approach to obtain effective transport coefficients for the long-time regime, i..e the Taylor-Aris dispersion in Poiseuille flow in a divergent microchannel while the walls of channel are assumed to have an electrostatic potential. During the current work, electromigration coupled with diffusion and convection is study in  a divergent system whereas the fluid in the geometry is assumed to be Newtonian, incompressible, and under steady state conditions. The system used here has been described by the convective-diffusive transport differential model coupled with the Laplace Equation for the electrostatic potential. Preliminary results will be presented and discussed.

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See more of this Session: Advances in Fluid Particle Separation
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