Analysis of Fluid Flow and Heat Transfer Characteristics Over a Square Cylinder: Effect of Corner Radius and Nanofluid Volume Fraction

2016 ◽  
Vol 42 (5) ◽  
pp. 1687-1698 ◽  
Author(s):  
Prasenjit Dey ◽  
Ajoy kumar Das
Keyword(s):  
Heat Transfer ◽  
Fluid Flow ◽  
Volume Fraction ◽  
Square Cylinder ◽  
Heat Transfer Characteristics ◽  
Transfer Characteristics ◽  
Flow And Heat Transfer ◽  
Corner Radius

scholarly journals On Heat Transfer Performance of Cooling Systems Using Nanofluid for Electric Motor Applications

Entropy ◽  
2020 ◽  
Vol 22 (1) ◽  
pp. 99 ◽  
Author(s):  
Ali Deriszadeh ◽  
Filippo de Monte
Keyword(s):  
Heat Transfer ◽  
Fluid Flow ◽  
Base Fluid ◽  
Heat Transfer Performance ◽  
Volume Fraction ◽  
Cooling System ◽  
Transfer Performance ◽  
Heat Transfer Characteristics ◽  
Transfer Characteristics ◽  
Flow And Heat Transfer

This paper studies the fluid flow and heat transfer characteristics of nanofluids as advance coolants for the cooling system of electric motors. Investigations are carried out using numerical analysis for a cooling system with spiral channels. To solve the governing equations, computational fluid dynamics and 3D fluid motion analysis are used. The base fluid is water with a laminar flow. The fluid Reynolds number and turn-number of spiral channels are evaluation parameters. The effect of nanoparticles volume fraction in the base fluid on the heat transfer performance of the cooling system is studied. Increasing the volume fraction of nanoparticles leads to improving the heat transfer performance of the cooling system. On the other hand, a high-volume fraction of the nanofluid increases the pressure drop of the coolant fluid and increases the required pumping power. This paper aims at finding a trade-off between effective parameters by studying both fluid flow and heat transfer characteristics of the nanofluid.

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