Numerical study of velocity and pressure drop in a microchannel using water and Al2O3 nanofluid

Razali, A. A. and Sadikin, A. (2017) Numerical study of velocity and pressure drop in a microchannel using water and Al2O3 nanofluid. ARPN Journal of Engineering and Applied Sciences, 12 (7). pp. 2385-2391. ISSN 18196608

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Abstract

This paper present a numerical simulation of velocity and pressure drop in a single flow square shape microchannel. The ANSYS Fluent 2015 was used to predict the flow in the microchannel. The simulations were undertaken to inform on how the fluid flow within the microchannel using water, 1% Al2O3 nanofluid and 2% Al2O3 nanofluid in water. The microchannel was model using Solidwork 2014 with 0.5mm wide and 0.5mm height which is in square shape. The temperature inlet was constant at 303K and uniform heat flux used at bottom of microchannel was 100 W/m-2. The results show significant difference between working fluid used on velocity, pressure drop and the change of temperature. Comparisons also were made on velocity and pressure drop with previous study to validate present results. It has been observed the velocity was increased due to increase of Reynolds number. However, the pressure drop results show there is no much different at lowest Reynolds number (Re=0.1) for both fluid used but when increase at Re=100, water has high pressure drop. The velocity and pressure drop affected the temperature value in microchannel. This present analysis shows that the addition of nanoparticles to water leads to increasing of temperature and pressure drop compare to water. © 2006-2017 Asian Research Publishing Network (ARPN). All rights reserved.

Item Type:Article
Uncontrolled Keywords:Nanofluid; pressure drop; velocity
Subjects:Q Science > QC Physics
Divisions:Faculty of Mechanical and Manufacturing Engineering > Department of Energy and Thermofluid Engineering
ID Code:9461
Deposited By:Mr. Mohammad Shaifulrip Ithnin
Deposited On:13 Aug 2018 11:14
Last Modified:13 Aug 2018 11:14

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