RT Journal Article
ID 49a33eb219c108e2
A1 Shahriari, Alireza
A1 Javaran, Ebrahim Jahanshahi
A1 Rahnama, Mohammad
T1 SIMULATION OF NATURAL CONVECTION OF AN Al2O3/WATER NANOFLUID IN A COMPLEX WAVY-WALL CAVITY USING THE LATTICE BOLTZMANN METHOD
JF Heat Transfer Research
JO HTR
YR 2019
FD 2019-09-05
VO 50
IS 15
SP 1513
OP 1530
K1 nanofluid
K1 lattice Boltzmann method
K1 natural convection
K1 Nusselt number
K1 cavity
AB In this paper, two-dimensional natural convection of an Al2O3/water nanofluid is presented using the lattice Boltz-mann method. Natural convection occurs in a cavity with two complex-wavy vertical walls, as hot and cold surfaces while the top and bottom ones are insulated. The effect of pertinent parameters such as the volume fraction of nanoparticles, Rayleigh numbers, and complex-wavy-wall geometry parameters on flow and heat transfer fields are investigated in detail. Results show an increase in the Nusselt number with volume fraction for Rayleigh numbers in the range 103 < Re < 106. Moreover, the effect of wavy-surface geometry parameters such as the wavelength and amplitude ratio, on heat transfer is studied, and an optimum value for heat transfer rate is obtained.
PB Begell House
LK https://www.dl.begellhouse.com/journals/46784ef93dddff27,62eeaa282c1df1b6,49a33eb219c108e2.html