Nanofluid Transport through a Complex Wavy Geometry with Magnetic and Permeability Effects
Abstract
:1. Introduction
2. Materials and Methods
2.1. Numerical Results
2.2. Grid Independence Test
3. Results and Discussion
4. Concluding Remarks
- Near the wavy surface wall, the magnetic field resists the fluid traveling and magnetic strength oppose the flow which results in an enhancement in drag force.
- Silver nanoparticles under the magnetic effects enhance the fluid motion resistance closer to the heated wavy wall and we obtain enhancement in the skin friction coefficient.
- Heat transfer rate in case of silver nanoparticles under the magnetic effects slow down the process of the heat transfer from the heated wavy wall to the ambient fluid temperature.
- Flow rate near the boundary layer portion can be controlled by the nanoparticles’ concentration.
- The process of the heat exchange from the thermal wavy wall can manage by the nanoparticles’ concentration.
- Wavy amplitude increment results in the enhancement of skin friction ( at the crest of the wavy surface but at the trough the skin friction decreases.
- Wavy amplitude increment results in the heat transfer rate (Nu) enhancement at the crest of the wavy surface but at the trough, the heat transfer rate (Nu) decreases.
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
Nomenclature
Symbols | Names with Units |
Constant material parameters | |
Magnetic induction, Tesla NA−1m−2 | |
Specific Heat, | |
g | Acceleration of gravity, m2s−1 |
Da−1 | Inverse of Darcy number |
k | Thermal Conductivity, Wm−1 K−1 |
l | Characteristic length of the wavy plate, m |
M | Magnetic number |
Dimensionless Pressure, Nm−2 | |
p | Dimensionless pressure |
Pr | Prandtl Number |
Wavy surface | |
T | Local temperature, K |
) | Dimensional Velocity component in (x, y) direction |
(u,v) | Dimensionless velocity component in the X direction |
(, ) | Dimensional coordinates |
(x,y) | Dimensionless coordinates |
Thermal diffusivity, m2 s | |
Amplitude of the wavy surface | |
Coefficient of thermal expansion, K−1 | |
Wavy parameter | |
new computational independent variables | |
Kinematic viscosity, m2 s−1 | |
Electrical conductivity, | |
Dimensionless Stream function Subscript | |
Local density, kgm−3 | |
Dimensionless temperature | |
Solid Volume Friction | |
Dynamic viscosity, kgm−1 s−1 | |
subscripts | |
f | Base fluid |
nf | Nanofluid |
p | Nanoparticle |
w | Condition at the surface |
Condition far away from surface |
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M = 0.0 | M = 0.01 | M = 0.1 | M = 0.5 | M = 0.5 | M = 0.0 | ||||
---|---|---|---|---|---|---|---|---|---|
[44,45,49] | Present | [50] | Present | [50] | Present | [50] | Present | [44,45,49] | |
0.0 | (0.44375) (0.4438) (0.4439) | 0.443749 | 0.443751 | 0.443749 | 0.443751 | 0.443749 | 0.443751 | 0.349242 | (0.349242) (0.3492) (0.3509) |
0.1 | - | 0.444417 | 0.444421 | 0.450417 | 0.450467 | 0.476872 | 0.476966 | 0.341787 | - |
0.2 | - | 0.445084 | 445091 | 0.457057 | 0.457160 | 0.509420 | 0509627 | 0.334250 | - |
0.3 | - | 0.445750 | 0.445760 | 0.463676 | 0.463831 | 0.541427 | 0.541753 | 0.326620 | - |
0.4 | - | 0.446417 | 0.446429 | 0.470272 | 0.470480 | 0.572896 | 0.573368 | 0.318894 | - |
0.5 | - | 0.447083 | 0.447098 | 0.476847 | 0.477107 | 0.603834 | 0.604488 | 0.311072 | - |
0.6 | - | 0.447749 | 0.447767 | 0.483400 | 0.483712 | 0.634244 | 0.635127 | 0.303153 | - |
0.7 | - | 0.448415 | 0.448435 | 0.489931 | 0.490296 | 0.664133 | 0.665291 | 0.295137 | - |
0.8 | - | 0.449081 | 0.449104 | 0.496441 | 0.496858 | 0.693506 | 0.694984 | 0.287028 | - |
0.9 | - | 0.449746 | 0.449772 | 0.502928 | 0.503398 | 0.722369 | 0.724201 | 0.278827 | - |
1.0 | - | 0.450411 | 0.450440 | 0.509394 | 0.509917 | 0.750730 | 0.752938 | 0.270545 | - |
50 | 5 | 3.1871 | 0.5677 |
100 | 10 | 3.1802 | 0.5546 |
200 | 20 | 3.1777 | 0.5517 |
400 | 40 | 3.1766 | 0.5509 |
800 | 80 | 3.1761 | 0.5506 |
1600 | 160 | 3.1758 | 0.5509 |
3200 | 320 | 3.1757 | 0.5505 |
4000 | 400 | 3.1757 | 0.5505 |
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Iqbal, M.S.; Ghaffari, A.; Riaz, A.; Mustafa, I.; Raza, M. Nanofluid Transport through a Complex Wavy Geometry with Magnetic and Permeability Effects. Inventions 2022, 7, 7. https://doi.org/10.3390/inventions7010007
Iqbal MS, Ghaffari A, Riaz A, Mustafa I, Raza M. Nanofluid Transport through a Complex Wavy Geometry with Magnetic and Permeability Effects. Inventions. 2022; 7(1):7. https://doi.org/10.3390/inventions7010007
Chicago/Turabian StyleIqbal, Muhammad Saleem, Abuzar Ghaffari, Arshad Riaz, Irfan Mustafa, and Muhammad Raza. 2022. "Nanofluid Transport through a Complex Wavy Geometry with Magnetic and Permeability Effects" Inventions 7, no. 1: 7. https://doi.org/10.3390/inventions7010007