Magnetic fluid driven flow in a capillary channel

Nickolaus M. Bruno, Constantin Ciocanel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents simulated and experimental results on the flow induced in a closed channel by a magnetic fluid (i.e. magnetorheological (MR) fluid and a ferrofluid) plunger. The results are used to assess the feasibility of using such fluids for development of milli-micro-scale pumps. The magnetic fluid plunger acts as a piston that is moved along the channel by an array of drive coils (or by a permanent magnet) to displace an immiscible fluid. The excited drive coils produce a traveling magnetic field wave inside the channel which in turn produces magnetic dipoles in the magnetic fluid. The dipoles react with the traveling wave leading to a Kelvin force that drags the magnetic fluid plunger through the channel. The flow rates achievable in this approach are a function of channel geometry, magnetic fluid properties, plug size, frequency of the current passing through the drive coils, and the location of the drive coils along the channel. Representative results of the analysis of the effect of these parameters on the flow rates are presented here. While the simulations indicate that both, MR and ferrofluids may be used for fluid actuation in the selected geometry, the experiments validated only the MR fluid option.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume7643
EditionPART 1
DOIs
StatePublished - 2010
EventActive and Passive Smart Structures and Integrated Systems 2010 - San Diego, CA, United States
Duration: Mar 8 2010Mar 11 2010

Other

OtherActive and Passive Smart Structures and Integrated Systems 2010
CountryUnited States
CitySan Diego, CA
Period3/8/103/11/10

Fingerprint

Magnetic Fluid
Magnetic fluids
Flow of fluids
Coil
fluids
Magnetorheological Fluid
plungers
Ferrofluid
coils
Magnetorheological fluids
Flow Rate
Dipole
magnetorheological fluids
ferrofluids
Fluid
Immiscible Fluids
Fluids
Drag Force
Permanent Magnet
Kelvin

Keywords

  • Channel flow
  • Ferrofluid
  • MR Fluid

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Bruno, N. M., & Ciocanel, C. (2010). Magnetic fluid driven flow in a capillary channel. In Proceedings of SPIE - The International Society for Optical Engineering (PART 1 ed., Vol. 7643). [764315] https://doi.org/10.1117/12.858564

Magnetic fluid driven flow in a capillary channel. / Bruno, Nickolaus M.; Ciocanel, Constantin.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7643 PART 1. ed. 2010. 764315.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Bruno, NM & Ciocanel, C 2010, Magnetic fluid driven flow in a capillary channel. in Proceedings of SPIE - The International Society for Optical Engineering. PART 1 edn, vol. 7643, 764315, Active and Passive Smart Structures and Integrated Systems 2010, San Diego, CA, United States, 3/8/10. https://doi.org/10.1117/12.858564
Bruno NM, Ciocanel C. Magnetic fluid driven flow in a capillary channel. In Proceedings of SPIE - The International Society for Optical Engineering. PART 1 ed. Vol. 7643. 2010. 764315 https://doi.org/10.1117/12.858564
Bruno, Nickolaus M. ; Ciocanel, Constantin. / Magnetic fluid driven flow in a capillary channel. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7643 PART 1. ed. 2010.
@inproceedings{d0b623e1a8924f0da27ad66657973855,
title = "Magnetic fluid driven flow in a capillary channel",
abstract = "This paper presents simulated and experimental results on the flow induced in a closed channel by a magnetic fluid (i.e. magnetorheological (MR) fluid and a ferrofluid) plunger. The results are used to assess the feasibility of using such fluids for development of milli-micro-scale pumps. The magnetic fluid plunger acts as a piston that is moved along the channel by an array of drive coils (or by a permanent magnet) to displace an immiscible fluid. The excited drive coils produce a traveling magnetic field wave inside the channel which in turn produces magnetic dipoles in the magnetic fluid. The dipoles react with the traveling wave leading to a Kelvin force that drags the magnetic fluid plunger through the channel. The flow rates achievable in this approach are a function of channel geometry, magnetic fluid properties, plug size, frequency of the current passing through the drive coils, and the location of the drive coils along the channel. Representative results of the analysis of the effect of these parameters on the flow rates are presented here. While the simulations indicate that both, MR and ferrofluids may be used for fluid actuation in the selected geometry, the experiments validated only the MR fluid option.",
keywords = "Channel flow, Ferrofluid, MR Fluid",
author = "Bruno, {Nickolaus M.} and Constantin Ciocanel",
year = "2010",
doi = "10.1117/12.858564",
language = "English (US)",
isbn = "9780819480583",
volume = "7643",
booktitle = "Proceedings of SPIE - The International Society for Optical Engineering",
edition = "PART 1",

}

TY - GEN

T1 - Magnetic fluid driven flow in a capillary channel

AU - Bruno, Nickolaus M.

AU - Ciocanel, Constantin

PY - 2010

Y1 - 2010

N2 - This paper presents simulated and experimental results on the flow induced in a closed channel by a magnetic fluid (i.e. magnetorheological (MR) fluid and a ferrofluid) plunger. The results are used to assess the feasibility of using such fluids for development of milli-micro-scale pumps. The magnetic fluid plunger acts as a piston that is moved along the channel by an array of drive coils (or by a permanent magnet) to displace an immiscible fluid. The excited drive coils produce a traveling magnetic field wave inside the channel which in turn produces magnetic dipoles in the magnetic fluid. The dipoles react with the traveling wave leading to a Kelvin force that drags the magnetic fluid plunger through the channel. The flow rates achievable in this approach are a function of channel geometry, magnetic fluid properties, plug size, frequency of the current passing through the drive coils, and the location of the drive coils along the channel. Representative results of the analysis of the effect of these parameters on the flow rates are presented here. While the simulations indicate that both, MR and ferrofluids may be used for fluid actuation in the selected geometry, the experiments validated only the MR fluid option.

AB - This paper presents simulated and experimental results on the flow induced in a closed channel by a magnetic fluid (i.e. magnetorheological (MR) fluid and a ferrofluid) plunger. The results are used to assess the feasibility of using such fluids for development of milli-micro-scale pumps. The magnetic fluid plunger acts as a piston that is moved along the channel by an array of drive coils (or by a permanent magnet) to displace an immiscible fluid. The excited drive coils produce a traveling magnetic field wave inside the channel which in turn produces magnetic dipoles in the magnetic fluid. The dipoles react with the traveling wave leading to a Kelvin force that drags the magnetic fluid plunger through the channel. The flow rates achievable in this approach are a function of channel geometry, magnetic fluid properties, plug size, frequency of the current passing through the drive coils, and the location of the drive coils along the channel. Representative results of the analysis of the effect of these parameters on the flow rates are presented here. While the simulations indicate that both, MR and ferrofluids may be used for fluid actuation in the selected geometry, the experiments validated only the MR fluid option.

KW - Channel flow

KW - Ferrofluid

KW - MR Fluid

UR - http://www.scopus.com/inward/record.url?scp=77953514267&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77953514267&partnerID=8YFLogxK

U2 - 10.1117/12.858564

DO - 10.1117/12.858564

M3 - Conference contribution

AN - SCOPUS:77953514267

SN - 9780819480583

VL - 7643

BT - Proceedings of SPIE - The International Society for Optical Engineering

ER -