2008 NSTI Nanotechnology Conference and Trade Show - Nanotech 2008 - 11th Annual

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TechConnect Summit
Clean Technology 2008

Porous and microchannel flow studies with improved spatial and velocity resolution

E.S. Ulrich, S. Manne
University of Arizona, US

Keywords:
microfluidics, porous, force, knudsen, poiseuille

Abstract:
Current studies of micro and nanoflows suffer from limited spatial and velocity resolution due to the diffraction limit for optical techniques and probe size for other anemometry sensors. We describe a force transduction technique that may aid in the direct observation of fluid flows with sub-micron resolution. Of particular interest are flows in the Knudsen regime, where no-slip boundary conditions no longer apply. We investigate modification of poiseuille flow in small channels in a variety of porous structures and discuss our results.


Nanotech 2008 Conference Program Abstract