Dispersion at low and high peclet numbers in finite-length patterned microchannels

Adrover, A.

dc.contributor.author	Adrover, A.	en
dc.date.accessioned	2017-08-28T07:08:35Z
dc.date.available	2017-08-28T07:08:35Z
dc.date.issued	2016	en
dc.description	Papers presented to the 12th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Costa de Sol, Spain on 11-13 July 2016.	en
dc.description.abstract	The present work focuses on laminar dispersion of solutes in finite-length patterned microtubes. Dispersion is strongly influenced by axial flow variations caused by patterns of periodic pillars and gaps in the flow direction. We focus on the Cassie Baxter state where the gaps are filled with with air pockets and thus free-slip boundary conditions apply at the liquid-air interface. The analysis of dispersion in a finite-length microtube is approached by considering the temporal moments of solute concentration. With this approach it is possible to investigate the dispersion properties at low and high Peclet numbers and therefore how the patterned structure of the microtube influences both the Taylor-Aris and Convection-dominated dispersion regimes. Numerical results for the velocity field and for the moment hierarchy are obtained by means of Finite Element Method (Comsol 3.5).
dc.format.extent	6 pages	en
dc.format.medium	PDF	en
dc.identifier.uri	http://hdl.handle.net/2263/62064
dc.language.iso	en	en
dc.publisher	HEFAT	en
dc.rights	University of Pretoria	en
dc.subject	Low and high peclet numbers	en
dc.subject	Finite-length patterned microchannels	en
dc.title	Dispersion at low and high peclet numbers in finite-length patterned microchannels	en
dc.type	Presentation	en