Title :
Microchannel fluid behavior using micropolar fluid theory
Author :
Papautsky, I. ; Brazzle, J. ; Ameel, T.A. ; Frazier, A.B.
Author_Institution :
Dept. of Bioeng., Utah Univ., Salt Lake City, UT, USA
Abstract :
In this paper, we describe microchannel fluid behavior using a numerical model based on micropolar fluid theory and experimentally verify the model using micromachined channels. The micropolar fluid theory augments the laws of classical continuum mechanics by incorporating the effects of fluid molecules on the continuum. The behavior of fluids was studied using surface micromachined rectangular metallic pipette arrays. A downstream port for static pressure measurement was used to eliminate entrance effects. The numerical model of the micropolar fluid theory compares favorably with the experimental data
Keywords :
fluidic devices; microactuators; micropumps; numerical analysis; pressure measurement; classical continuum mechanics; entrance effects; fluid molecules; microchannel fluid; micromachined channels; micropolar fluid theory; numerical model; static pressure measurement; surface micromachined rectangular metallic pipette arrays; Cities and towns; Friction; Microchannel; Microfluidics; Navier-Stokes equations; Numerical models; Pumps; Solids; Valves; Viscosity;
Conference_Titel :
Micro Electro Mechanical Systems, 1998. MEMS 98. Proceedings., The Eleventh Annual International Workshop on
Conference_Location :
Heidelberg
Print_ISBN :
0-7803-4412-X
DOI :
10.1109/MEMSYS.1998.659816