Piecewise uniform conduction-like flow channels and method therefor
Abstract
A low-dispersion methodology for designing microfabricated conduction channels for on-chip electrokinetic-based systems is presented. The technique relies on trigonometric relations that apply for ideal electrokinetic flows, allowing faceted channels to be designed on chips using common drafting software and a hand calculator. Flows are rotated and stretched along the abrupt interface between adjacent regions with differing permeability. Regions bounded by interfaces form flow "prisms" that can be combined with other designed prisms to obtain a wide range of turning angles and expansion ratios while minimizing dispersion. Designs are demonstrated using two-dimensional numerical solutions of the Laplace equation.
- Inventors:
-
- Livermore, CA
- Issue Date:
- Research Org.:
- Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 908590
- Patent Number(s):
- 7005301
- Application Number:
- 10/456,772
- Assignee:
- Sandia National Laboratories (Livermore, CA)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Cummings, Eric B, and Fiechtner, Gregory J. Piecewise uniform conduction-like flow channels and method therefor. United States: N. p., 2006.
Web.
Cummings, Eric B, & Fiechtner, Gregory J. Piecewise uniform conduction-like flow channels and method therefor. United States.
Cummings, Eric B, and Fiechtner, Gregory J. Tue .
"Piecewise uniform conduction-like flow channels and method therefor". United States. https://www.osti.gov/servlets/purl/908590.
@article{osti_908590,
title = {Piecewise uniform conduction-like flow channels and method therefor},
author = {Cummings, Eric B and Fiechtner, Gregory J},
abstractNote = {A low-dispersion methodology for designing microfabricated conduction channels for on-chip electrokinetic-based systems is presented. The technique relies on trigonometric relations that apply for ideal electrokinetic flows, allowing faceted channels to be designed on chips using common drafting software and a hand calculator. Flows are rotated and stretched along the abrupt interface between adjacent regions with differing permeability. Regions bounded by interfaces form flow "prisms" that can be combined with other designed prisms to obtain a wide range of turning angles and expansion ratios while minimizing dispersion. Designs are demonstrated using two-dimensional numerical solutions of the Laplace equation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {2}
}
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