TY - JOUR
T1 - Laminar film condensation of pseudo-plastic non-Newtonian fluid with variable thermal conductivity on an isothermal vertical plate
AU - Si, Xinhui
AU - Zhu, Xiandong
AU - Zheng, Liancun
AU - Zhang, Xinxin
AU - Lin, Ping
N1 - This work is supported by the National Natural Science Foundations of China (No: 11302024), Beijing Higher Education Young Elite Teacher Project (No. YETP0387), the Fundamental Research Funds for the Central Universities (No. FRF-TP-12-108A) and the foundation of the China Scholarship Council in 2014 (File No. 154201406465041).
PY - 2016/1
Y1 - 2016/1
N2 - n this paper, we examine the laminar film condensation of pseudo-plastic non-Newtonian fluids with variable thermal conductivity on an isothermal vertical plate. The thermal conductivity is assumed to be power-law-dependent on the velocity gradient. The dual similar solutions, which are influenced by the parameters of the power law number n and the thickness ηδ of the condensation film, are obtained numerically by Runge–Kutta method coupled with shooting method. More attention is paid to discuss the first branch of the solutions with physical meaning. Especially the effects of above both parameters on the velocity and temperature distribution, condensation mass flow rate and the local Nusselt number are analyzed in detail.
AB - n this paper, we examine the laminar film condensation of pseudo-plastic non-Newtonian fluids with variable thermal conductivity on an isothermal vertical plate. The thermal conductivity is assumed to be power-law-dependent on the velocity gradient. The dual similar solutions, which are influenced by the parameters of the power law number n and the thickness ηδ of the condensation film, are obtained numerically by Runge–Kutta method coupled with shooting method. More attention is paid to discuss the first branch of the solutions with physical meaning. Especially the effects of above both parameters on the velocity and temperature distribution, condensation mass flow rate and the local Nusselt number are analyzed in detail.
KW - Power-law fluids
KW - Laminar film condensation
KW - Dual solutions
KW - The generalized Prandtl number
KW - Variable thermal conductivity
U2 - 10.1016/j.ijheatmasstransfer.2015.09.061
DO - 10.1016/j.ijheatmasstransfer.2015.09.061
M3 - Article
SN - 0017-9310
VL - 92
SP - 979
EP - 986
JO - International Journal of Heat and Mass Transfer
JF - International Journal of Heat and Mass Transfer
ER -