Unsteady Convection Flow of Some Nanofluids Past a Moving Vertical Flat Plate With Heat Transfer

2013 ◽  
Vol 136 (3) ◽  
Author(s):  
M. Turkyilmazoglu
Keyword(s):  
Flat Plate ◽  
Radiation Effect ◽  
Numerical Solutions ◽  
Skin Friction Coefficient ◽  
Convection Flow ◽  
Nanofluid Flow ◽  
Flow Problems ◽  
Temperature Boundary ◽  
Analytical Expressions ◽  
Thermal Radiation Effect

This paper is devoted to the study of heat and mass transfer characteristics of some nanofluid flows past an infinite flat plate moving vertically. Some water-based nanofluids containing copper (Cu), silver (Ag), copper oxide (CuO), alumina (Al2O3), and titanium oxide (TiO2) are analytically analyzed taking into consideration the thermal radiation effect for two types of temperature boundary conditions. The physically significant properties like skin friction coefficient and Nusselt number are easy to conceive from the derived exact analytical expressions for the velocity and temperature profiles. Results are believed to constitute a tool to verify the validity of numerical solutions for more complicated transient free/forced convection nanofluid flow problems.

Thermal Radiation Effect on 3D Slip Motion of Alcu-Water and Cu-Water Nanofluids over a Variable Thickness Stretched Surface

2017 ◽  
Vol 377 ◽  
pp. 141-154 ◽  
Author(s):  
P. Mohan Krishna ◽  
N. Sandeep ◽  
Ram Prakash Sharma ◽  
Oluwole Daniel Makinde
Keyword(s):  
Heat Transfer ◽  
Thermal Radiation ◽  
Radiation Effect ◽  
Skin Friction Coefficient ◽  
Slip Effect ◽  
Uniform Thickness ◽  
Thermal Radiation Effect ◽  
Parameters Of Interest ◽  
Slip Motion ◽  
Newton's Methods

The current paper covers the examination of 3D nanofluid motion over a slendering expanding sheet under the influence of slip effect and thermal radiation. In this study, we considered the Cu-water and Al50Cu50-water nanofluids over a non-uniform thickness expanding sheet. With the help of similitude transformations, we changed the derived governed equations as ordinary differential equations. The mathematical outcomes determined by using Runge-Kutta and Newton’s methods. We reveal and interpret the graphs for different parameters of interest. We discussed the skin friction coefficient and reduced Nusselt number at different pertinent parameters. Results shown that the rate of heat transfer is higher in Al50Cu50-water nanofluid when compared with Cu-water nanofluid.

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