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Title: Oscillating flow and separation of species in rectangular channels

Abstract

The mass transfer and separation of species in a tube using oscillatory flows are strongly affected by the fluid flow profiles in the tube. It has been well established that oscillatory motion in a one-dimensional flow configuration leads to a single tuning dimensionless frequency, where optimum separation may be effected. In this work, the effect on species separation by two-dimensional laminar flow arising in a rectangular cross section is studied and a surprising result is that a second tuning frequency may occur at lower dimensionless oscillation frequencies. The physics reveals that this new optimum disappears when the aspect ratio is either very large or close to unity. These observations are related to the flow profiles at different aspect ratios.

Authors:
;  [1]
  1. Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611 (United States)
Publication Date:
OSTI Identifier:
22598924
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Fluids; Journal Volume: 28; Journal Issue: 7; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 42 ENGINEERING; ASPECT RATIO; CONFIGURATION; CROSS SECTIONS; FLUIDS; LAMINAR FLOW; MASS TRANSFER; ONE-DIMENSIONAL CALCULATIONS; TUBES; TUNING; TWO-DIMENSIONAL CALCULATIONS; TWO-PHASE FLOW

Citation Formats

Hacioglu, A., E-mail: ahacioglu@ufl.edu, and Narayanan, R., E-mail: ranga@ufl.edu. Oscillating flow and separation of species in rectangular channels. United States: N. p., 2016. Web. doi:10.1063/1.4954316.
Hacioglu, A., E-mail: ahacioglu@ufl.edu, & Narayanan, R., E-mail: ranga@ufl.edu. Oscillating flow and separation of species in rectangular channels. United States. doi:10.1063/1.4954316.
Hacioglu, A., E-mail: ahacioglu@ufl.edu, and Narayanan, R., E-mail: ranga@ufl.edu. 2016. "Oscillating flow and separation of species in rectangular channels". United States. doi:10.1063/1.4954316.
@article{osti_22598924,
title = {Oscillating flow and separation of species in rectangular channels},
author = {Hacioglu, A., E-mail: ahacioglu@ufl.edu and Narayanan, R., E-mail: ranga@ufl.edu},
abstractNote = {The mass transfer and separation of species in a tube using oscillatory flows are strongly affected by the fluid flow profiles in the tube. It has been well established that oscillatory motion in a one-dimensional flow configuration leads to a single tuning dimensionless frequency, where optimum separation may be effected. In this work, the effect on species separation by two-dimensional laminar flow arising in a rectangular cross section is studied and a surprising result is that a second tuning frequency may occur at lower dimensionless oscillation frequencies. The physics reveals that this new optimum disappears when the aspect ratio is either very large or close to unity. These observations are related to the flow profiles at different aspect ratios.},
doi = {10.1063/1.4954316},
journal = {Physics of Fluids},
number = 7,
volume = 28,
place = {United States},
year = 2016,
month = 7
}