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Combined mass suction and buoyancy effects on heat transfer and gas flow in a fuel cell duct

Yuan, Jinliang LU ; Rokni, Masoud LU and Sundén, Bengt LU (2003) In Numerical Heat Transfer Part A: Applications 43(4). p.341-366
Abstract
A numerical study was carried out to examine the development of duct flows being affected by combined buoyancy force-driven secondary flow and mass transfer. The developing flow and heat transfer have been simulated numerically for a horizontal fuel cell duct with rectangular and trapezoidal cross section. Constant heat flux and mass transfer rate are prescribed on the bottom wall, while thermal insulation is implemented on the other three impermeable walls. The buoyancy-generated secondary flow and mass transfer can disrupt the hydrodynamic and thermal boundary layers, and thus affect the friction factor and Nusselt number. Calculations have been performed to determine the effects of various Grashof number, mass transfer rate, and... (More)
A numerical study was carried out to examine the development of duct flows being affected by combined buoyancy force-driven secondary flow and mass transfer. The developing flow and heat transfer have been simulated numerically for a horizontal fuel cell duct with rectangular and trapezoidal cross section. Constant heat flux and mass transfer rate are prescribed on the bottom wall, while thermal insulation is implemented on the other three impermeable walls. The buoyancy-generated secondary flow and mass transfer can disrupt the hydrodynamic and thermal boundary layers, and thus affect the friction factor and Nusselt number. Calculations have been performed to determine the effects of various Grashof number, mass transfer rate, and Reynolds number. Comparisons of these numerical results with available data are presented. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Numerical Heat Transfer Part A: Applications
volume
43
issue
4
pages
341 - 366
publisher
Taylor & Francis
external identifiers
  • wos:000180837000001
  • scopus:0242713108
ISSN
1040-7782
DOI
10.1080/10407780307358
language
English
LU publication?
yes
id
1a4138b0-8a50-406d-8bb9-d5a5c8f249dd (old id 318164)
date added to LUP
2007-09-24 13:59:58
date last changed
2018-01-07 08:59:18
@article{1a4138b0-8a50-406d-8bb9-d5a5c8f249dd,
  abstract     = {A numerical study was carried out to examine the development of duct flows being affected by combined buoyancy force-driven secondary flow and mass transfer. The developing flow and heat transfer have been simulated numerically for a horizontal fuel cell duct with rectangular and trapezoidal cross section. Constant heat flux and mass transfer rate are prescribed on the bottom wall, while thermal insulation is implemented on the other three impermeable walls. The buoyancy-generated secondary flow and mass transfer can disrupt the hydrodynamic and thermal boundary layers, and thus affect the friction factor and Nusselt number. Calculations have been performed to determine the effects of various Grashof number, mass transfer rate, and Reynolds number. Comparisons of these numerical results with available data are presented.},
  author       = {Yuan, Jinliang and Rokni, Masoud and Sundén, Bengt},
  issn         = {1040-7782},
  language     = {eng},
  number       = {4},
  pages        = {341--366},
  publisher    = {Taylor & Francis},
  series       = {Numerical Heat Transfer Part A: Applications},
  title        = {Combined mass suction and buoyancy effects on heat transfer and gas flow in a fuel cell duct},
  url          = {http://dx.doi.org/10.1080/10407780307358},
  volume       = {43},
  year         = {2003},
}