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Analysis of natural convection of Cu and TiO2nanofluids inside nonconventional enclosures

Abdul Fattah Abood, Sahar LU ; Wang, Jin LU ; Wu, Zan LU and Sundén, Bengt LU (2018) In Journal of Enhanced Heat Transfer 25(4-5). p.315-332
Abstract
Steady-state laminar natural convection of Cu and TiO2 nanofluids inside different enclosures is numerically investigated. Natural convection is concerned due to a temperature difference between the hot and cold surfaces. The Boussinesq approximation is used to form the governing equations and the commercial software package ANSYS FLUENT version 14.0 is used to numerically solve the governing equations. The temperature profiles and flow patterns at different Rayleigh numbers, i.e., 104, 105and 106 are studied and compared for different curved geometries which are 1/8, 2/8 and 3/8 of the height of the enclosure. Heat transfer coefficients are presented for enclosures with different nanofluid concentrations. The nanoparticles enhance the... (More)
Steady-state laminar natural convection of Cu and TiO2 nanofluids inside different enclosures is numerically investigated. Natural convection is concerned due to a temperature difference between the hot and cold surfaces. The Boussinesq approximation is used to form the governing equations and the commercial software package ANSYS FLUENT version 14.0 is used to numerically solve the governing equations. The temperature profiles and flow patterns at different Rayleigh numbers, i.e., 104, 105and 106 are studied and compared for different curved geometries which are 1/8, 2/8 and 3/8 of the height of the enclosure. Heat transfer coefficients are presented for enclosures with different nanofluid concentrations. The nanoparticles enhance the heat transfer. The heat transfer enhancement increases with increasing nanoparticle concentrations. A new curved enclosure is suggested to augment heat transfer. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Curved enclosures, Heat transfer, Natural Convection, Nanoparticles
in
Journal of Enhanced Heat Transfer
volume
25
issue
4-5
pages
7 pages
publisher
Begell House
external identifiers
  • scopus:85053376992
ISSN
1563-5074
DOI
10.1615/JEnhHeatTransf.2018021861
language
English
LU publication?
yes
id
29f3772f-c4c7-4624-a46f-8460afbe84be
date added to LUP
2018-08-16 09:39:51
date last changed
2020-04-07 04:57:46
@article{29f3772f-c4c7-4624-a46f-8460afbe84be,
  abstract     = {Steady-state laminar natural convection of Cu and TiO2 nanofluids inside different enclosures is numerically investigated. Natural convection is concerned due to a temperature difference between the hot and cold surfaces. The Boussinesq approximation is used to form the governing equations and the commercial software package ANSYS FLUENT version 14.0 is used to numerically solve the governing equations. The temperature profiles and flow patterns at different Rayleigh numbers, i.e., 104, 105and 106 are studied and compared for different curved geometries which are 1/8, 2/8 and 3/8 of the height of the enclosure. Heat transfer coefficients are presented for enclosures with different nanofluid concentrations. The nanoparticles enhance the heat transfer. The heat transfer enhancement increases with increasing nanoparticle concentrations. A new curved enclosure is suggested to augment heat transfer.},
  author       = {Abdul Fattah Abood, Sahar and Wang, Jin and Wu, Zan and Sundén, Bengt},
  issn         = {1563-5074},
  language     = {eng},
  month        = {02},
  number       = {4-5},
  pages        = {315--332},
  publisher    = {Begell House},
  series       = {Journal of Enhanced Heat Transfer},
  title        = {Analysis of natural convection of Cu and TiO2nanofluids inside nonconventional enclosures},
  url          = {http://dx.doi.org/10.1615/JEnhHeatTransf.2018021861},
  doi          = {10.1615/JEnhHeatTransf.2018021861},
  volume       = {25},
  year         = {2018},
}