Influence of nonlinear thermal radiation and variable viscosity on hydromagnetic heat and mass transfer in a thin liquid film over an unsteady stretching surface

2016 ◽  
Vol 119 ◽  
pp. 208-216 ◽  
Author(s):  
Dulal Pal ◽  
Prasenjit Saha
Keyword(s):  
Mass Transfer ◽  
Thermal Radiation ◽  
Liquid Film ◽  
Heat And Mass Transfer ◽  
Variable Viscosity ◽  
Thin Liquid Film ◽  
Nonlinear Thermal Radiation ◽  
Stretching Surface ◽  
Unsteady Stretching Surface

scholarly journals Heat and Mass Transfer in a Thin Liquid Film over an Unsteady Stretching Surface in the Presence of Thermosolutal Capillarity and Variable Magnetic Field

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
Yan Zhang ◽  
Min Zhang ◽  
Shujuan Qi
Keyword(s):  
Magnetic Field ◽  
Mass Transfer ◽  
Liquid Film ◽  
Heat And Mass Transfer ◽  
Capillary Number ◽  
Thin Liquid Film ◽  
Perturbation Expansion ◽  
Expansion Method ◽  
Variable Magnetic Field ◽  
Unsteady Stretching Surface

The heat and mass transfer characteristics of a liquid film which contain thermosolutal capillarity and a variable magnetic field over an unsteady stretching sheet have been investigated. The governing equations for momentum, energy, and concentration are established and transformed to a set of coupled ordinary equations with the aid of similarity transformation. The analytical solutions are obtained using the double-parameter transformation perturbation expansion method. The effects of various relevant parameters such as unsteady parameter, Prandtl number, Schmidt number, thermocapillary number, and solutal capillary number on the velocity, temperature, and concentration fields are discussed and presented graphically. Results show that increasing values of thermocapillary number and solutal capillary number both lead to a decrease in the temperature and concentration fields. Furthermore, the influences of thermocapillary number on various fields are more remarkable in comparison to the solutal capillary number.

Heat and Mass Transfer in a Nanofluid Film on an Unsteady Stretching Surface

2015 ◽  
Vol 4 (4) ◽  
pp. 560-567 ◽  
Author(s):  
Mahesh Kumari ◽  
B. J. Gireesha ◽  
Rama Subba Reddy Gorla
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Stretching Surface ◽  
Unsteady Stretching Surface
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