TY - JOUR
T1 - Simulation of non-Newtonianmolten polymer on natural convection in a sinusoidal heated cavity using FDLBM
AU - Kefayati, Gholamreza
PY - 2014/7
Y1 - 2014/7
N2 - In this paper, natural convection of non-Newtonian molten polymer in a cavity with a sinusoidal heated wall has been analyzed by Finite Difference Lattice Boltzmann method (FDLBM). The molten polymer is modeled on power-law non-Newtonian fluid. This study has been performed for the certain pertinent parameters of Rayleigh number (Ra = 104 and 105) and power-law index (n = 0.5-1.5). Results indicate that the innovative FDLBM is an appropriate method for the problem. The augmentation of the power-law index causes heat transfer to drop generally. Moreover, the alteration of power-law index influences the heat transfer at Ra = 105 more than Ra = 10 4 although the difference is marginal.
AB - In this paper, natural convection of non-Newtonian molten polymer in a cavity with a sinusoidal heated wall has been analyzed by Finite Difference Lattice Boltzmann method (FDLBM). The molten polymer is modeled on power-law non-Newtonian fluid. This study has been performed for the certain pertinent parameters of Rayleigh number (Ra = 104 and 105) and power-law index (n = 0.5-1.5). Results indicate that the innovative FDLBM is an appropriate method for the problem. The augmentation of the power-law index causes heat transfer to drop generally. Moreover, the alteration of power-law index influences the heat transfer at Ra = 105 more than Ra = 10 4 although the difference is marginal.
KW - FDLBM
KW - Molten polymer
KW - Natural convection
KW - Non-Newtonian
KW - Sinusoidal heated cavity
UR - http://www.scopus.com/inward/record.url?scp=84894329285&partnerID=8YFLogxK
U2 - 10.1016/j.molliq.2014.02.031
DO - 10.1016/j.molliq.2014.02.031
M3 - Article
VL - 195
SP - 165
EP - 174
JO - JOURNAL OF MOLECULAR LIQUIDS
JF - JOURNAL OF MOLECULAR LIQUIDS
SN - 0167-7322
ER -