TY - JOUR
T1 - Effect of Emissivity on the Heat and Mass Transfer of Humid Air in a Cavity Filled with Solid Obstacles
AU - Iyi, Draco
AU - Hasan, Reaz
AU - Penlington, Roger
PY - 2015
Y1 - 2015
N2 - The work reported here is a 2D numerical study on the buoyancy-driven low-speed turbulent flow of humid air inside a rectangular cavity partially filled with solid cylindrical objects for a Rayleigh number of 1.45 × 109. Variations of Nusselt number, buoyancy flux, vapor mass fraction, and turbulence viscosity ratio are presented for various emissivity values of wall surfaces. It was observed that during the natural convection process, radiation effects are very significant and the air/water vapor combination results in a small increase in heat transfer as compared with the pure natural convection of dry air.
AB - The work reported here is a 2D numerical study on the buoyancy-driven low-speed turbulent flow of humid air inside a rectangular cavity partially filled with solid cylindrical objects for a Rayleigh number of 1.45 × 109. Variations of Nusselt number, buoyancy flux, vapor mass fraction, and turbulence viscosity ratio are presented for various emissivity values of wall surfaces. It was observed that during the natural convection process, radiation effects are very significant and the air/water vapor combination results in a small increase in heat transfer as compared with the pure natural convection of dry air.
UR - https://www.scopus.com/pages/publications/84918821605
U2 - 10.1080/10407782.2014.937261
DO - 10.1080/10407782.2014.937261
M3 - Article
SN - 1040-7782
SN - 1521-0634
VL - 67
SP - 531
EP - 546
JO - Numerical Heat Transfer, Part A: Applications
JF - Numerical Heat Transfer, Part A: Applications
IS - 5
ER -