INFLUENCE OF VARIABLE LIQUID PROPERTIES ON MAGNETOHYDRODYNAMIC FLOW AND HEAT TRANSFER OF A CASSON LIQUID OVER A SLENDER ROTATING DISK: NUMERICAL AND OPTIMAL SOLUTION

2020 ◽  
Vol 12 (1) ◽  
pp. 21-39
Author(s):  
Hanumesh Vaidya ◽  
K. V. Prasad ◽  
Kuppalapalle Vajravelu ◽  
B. Srikantha Setty ◽  
O. D. Makinde
Keyword(s):  
Heat Transfer ◽  
Optimal Solution ◽  
Rotating Disk ◽  
Magnetohydrodynamic Flow ◽  
Flow And Heat Transfer

Magnetohydrodynamic flow and heat transfer impact on ZnO-SAE50 nanolubricant flow over an inclined rotating disk

2019 ◽  
Vol 26 (5) ◽  
pp. 1146-1160 ◽  
Author(s):  
M. K. Nayak ◽  
Rashid Mehmood ◽  
O. D. Makinde ◽  
O. Mahian ◽  
Ali J. Chamkha
Keyword(s):  
Heat Transfer ◽  
Rotating Disk ◽  
Magnetohydrodynamic Flow ◽  
Flow And Heat Transfer

Magnetohydrodynamic flow and heat transfer of a hybrid nanofluid over a rotating disk by considering Arrhenius energy

2021 ◽  
Vol 73 (4) ◽  
pp. 045002
Author(s):  
M Gnaneswara Reddy ◽  
Naveen Kumar R ◽  
B C Prasannakumara ◽  
N G Rudraswamy ◽  
K Ganesh Kumar
Keyword(s):  
Heat Transfer ◽  
Rotating Disk ◽  
Magnetohydrodynamic Flow ◽  
Hybrid Nanofluid ◽  
Flow And Heat Transfer ◽  
Arrhenius Energy

scholarly journals Magnetohydrodynamic flow and heat transfer about a rotating disk with suction and injection at the disk surface

1988 ◽  
Vol 16 (2) ◽  
pp. 183-193 ◽  
Author(s):  
S.Kishore Kumar ◽  
William I. Thacker ◽  
Layne T. Watson
Keyword(s):  
Heat Transfer ◽  
Rotating Disk ◽  
Disk Surface ◽  
Magnetohydrodynamic Flow ◽  
Flow And Heat Transfer

Magnetohydrodynamic Flow and Heat Transfer About a Rotating Disk

1962 ◽  
Vol 29 (1) ◽  
pp. 181-187 ◽  
Author(s):  
E. M. Sparrow ◽  
R. D. Cess
Keyword(s):  
Magnetic Field ◽  
Heat Transfer ◽  
Prandtl Number ◽  
Axial Magnetic Field ◽  
Rotating Disk ◽  
Magnetohydrodynamic Flow ◽  
Flow And Heat Transfer ◽  
Steady Rotation ◽  
The Magnetic Field ◽  
Flow Velocities

The effects of an axial magnetic field on the flow and heat transfer about a rotating disk have been analyzed. It is found that the presence of the magnetic field significantly decreases the flow velocities; but increases the torque required to maintain steady rotation of the disk. The heat transfer is also decreased by the magnetic field, with greater redutions occurring for low Prandtl number fluids.

Heat Transfer in a “Cover-Plate” Preswirl Rotating-Disk System

1999 ◽  
Vol 121 (2) ◽  
pp. 249-256 ◽  
Author(s):  
R. Pilbrow ◽  
H. Karabay ◽  
M. Wilson ◽  
J. M. Owen
Keyword(s):  
Heat Transfer ◽  
Rotating Disk ◽  
Reynolds Numbers ◽  
Turbine Disk ◽  
Cover Plate ◽  
Blade Cooling ◽  
Nusselt Numbers ◽  
Flow And Heat Transfer ◽  
Cooling Air ◽  
Plate System

In most gas turbines, blade-cooling air is supplied from stationary preswirl nozzles that swirl the air in the direction of rotation of the turbine disk. In the “cover-plate” system, the preswirl nozzles are located radially inward of the blade-cooling holes in the disk, and the swirling airflows radially outward in the cavity between the disk and a cover-plate attached to it. In this combined computational and experimental paper, an axisymmetric elliptic solver, incorporating the Launder–Sharma and the Morse low-Reynolds-number k–ε turbulence models, is used to compute the flow and heat transfer. The computed Nusselt numbers for the heated “turbine disk” are compared with measured values obtained from a rotating-disk rig. Comparisons are presented, for a wide range of coolant flow rates, for rotational Reynolds numbers in the range 0.5 X 106 to 1.5 X 106, and for 0.9 < βp < 3.1, where βp is the preswirl ratio (or ratio of the tangential component of velocity of the cooling air at inlet to the system to that of the disk). Agreement between the computed and measured Nusselt numbers is reasonably good, particularly at the larger Reynolds numbers. A simplified numerical simulation is also conducted to show the effect of the swirl ratio and the other flow parameters on the flow and heat transfer in the cover-plate system.

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