Effect of Brownian motion and external magnetic field on the effective heat capacity of ferrofluids

Narges Susan Mousavi Kh., Sunil Kumar, Arvind Narayanaswamy

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

Abstract

An Eulerian formalism is used to derive the energy equation for a system of magnetic nanoparticles in a fluid (ferrofluid) in the presence of uniform magnetic field. The energy equation proposed here contains an effective heat capacity, which has contributions from: (1) Brownian motion of nanoparticles, (2) magnetic field,(3) temperature, and (4) volume fraction of particles. The modified term quantitatively shows the negligible contribution of the first three factors but the significant effect of concentration of particles in change in heat capacity of ferrofluid. In order to have a better understanding of the problem, the equation is converted to a non dimensional form from which the role of each of physical parameters can be inferred.

Original languageEnglish (US)
Title of host publicationASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011
Pages635-644
Number of pages10
Volume6
EditionPARTS A AND B
StatePublished - 2011
EventASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011 - Denver, CO, United States
Duration: Nov 11 2011Nov 17 2011

Other

OtherASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011
CountryUnited States
CityDenver, CO
Period11/11/1111/17/11

Fingerprint

Magnetic fluids
Brownian movement
Specific heat
Magnetic fields
Nanoparticles
Volume fraction
Temperature

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Mousavi Kh., N. S., Kumar, S., & Narayanaswamy, A. (2011). Effect of Brownian motion and external magnetic field on the effective heat capacity of ferrofluids. In ASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011 (PARTS A AND B ed., Vol. 6, pp. 635-644)

Effect of Brownian motion and external magnetic field on the effective heat capacity of ferrofluids. / Mousavi Kh., Narges Susan; Kumar, Sunil; Narayanaswamy, Arvind.

ASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011. Vol. 6 PARTS A AND B. ed. 2011. p. 635-644.

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

Mousavi Kh., NS, Kumar, S & Narayanaswamy, A 2011, Effect of Brownian motion and external magnetic field on the effective heat capacity of ferrofluids. in ASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011. PARTS A AND B edn, vol. 6, pp. 635-644, ASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011, Denver, CO, United States, 11/11/11.
Mousavi Kh. NS, Kumar S, Narayanaswamy A. Effect of Brownian motion and external magnetic field on the effective heat capacity of ferrofluids. In ASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011. PARTS A AND B ed. Vol. 6. 2011. p. 635-644
Mousavi Kh., Narges Susan ; Kumar, Sunil ; Narayanaswamy, Arvind. / Effect of Brownian motion and external magnetic field on the effective heat capacity of ferrofluids. ASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011. Vol. 6 PARTS A AND B. ed. 2011. pp. 635-644
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