Flow Simulation of a Microfluidic Analog of the Four-Roll Mill

Published

March 1, 2004

Author(s)

Frederick R. Phelan Jr., Steven Hudson

Abstract

The fluid dynamics of channel geometries for liquid state materials characterization in microfluidic devices are investigated using finite element flow simulation and flow classification criteria. A pressure driven microchannel device is sought that has an adjustable flow type, approximating the function of the four-roll mill. Channel flow geometries in which the full range of linear flows (extension, shear and rotation) can be approximated in the neighborhood surrounding a stagnation point are investigated. A class of flow geometries is identified which makes use of opposing, laterally offset fluid streams that produce a stagnation point in the center of the geometry.

Proceedings Title

NSTI Nanotechnology Conference and Trade Show| | | Nano Science and Technology Institute

Conference Dates

March 1, 2004

Conference Location

Undefined

Conference Title

Nanotech

Pub Type

Conferences

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Local Download

Keywords

finite element analysis, flinear flow, flow classification, Four Roll Mill, microfluidics, rheology

Citation

Phelan Jr., F. and Hudson, S. (2004), Flow Simulation of a Microfluidic Analog of the Four-Roll Mill, NSTI Nanotechnology Conference and Trade Show| | | Nano Science and Technology Institute, Undefined, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=852310 (Accessed October 20, 2025)