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Title: 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:
 [1];  [1]
  1. Livermore, CA
Publication Date:
Research Org.:
Sandia National Laboratories (SNL-CA), Livermore, CA
Sponsoring Org.:
USDOE
OSTI Identifier:
908590
Patent Number(s):
7,005,301
Application Number:
10/456,772
Assignee:
Sandia National Laboratories (Livermore, CA) ALO
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. doi:. 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 = {Tue Feb 28 00:00:00 EST 2006},
month = {Tue Feb 28 00:00:00 EST 2006}
}

Patent:

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