scholarly journals Peristaltic Flow of Reactive Viscous Fluid with Temperature Dependent Viscosity

2013 ◽  
Vol 18 (3) ◽  
pp. 198-220 ◽  
Author(s):  
S. Asghar ◽  
Q. Hussain ◽  
T. Hayat
Keyword(s):  
Viscous Fluid ◽  
Peristaltic Flow ◽  
Temperature Dependent ◽  
Temperature Dependent Viscosity ◽  
Dependent Viscosity

Non-isothermal blade coating analysis of viscous fluid with temperature-dependent viscosity using lubrication approximation theory

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Sabeeh Khaliq ◽  
Zaheer Abbas
Keyword(s):  
Temperature Distribution ◽  
Viscous Fluid ◽  
Coating Thickness ◽  
Maximum Pressure ◽  
Coating Process ◽  
Lubrication Approximation ◽  
Temperature Dependent ◽  
Temperature Dependent Viscosity ◽  
Dependent Viscosity ◽  
Blade Coating

Abstract Blade coating process is studied in a nonisothermal analysis of viscous fluid with temperature-dependent viscosity by employing both plane and exponential coaters. The governing expressions are nondimensionalized and simplified under the assumption of lubrication approximation theory. Then, perturbative technique is used to find the solution for velocity, pressure, temperature distribution, and coating thickness. The influence of dimensionless parameter ε, Graetz number Gz, and normalized coating thickness γ on the velocity, maximum pressure, temperature distribution, and pressure gradient is portrayed through graphs, whereas load and coating thickness variations reported in a tabular manner. It is found that maximum pressure, coating thickness, and blade load decreases for temperature variations in viscosity, which leads to improved efficiency of blade coating process and life of the moving substrate.

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