Flow Distribution in Parallel Rectangular Multi Microchannels in Single Phase

Authors

  • Amirah Mohamad Sahar Faculty of Computer and Mathematical Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
  • Mohamad Shaiful Ashrul Ishak Faculty of Mechanical Engineering Technology, Universiti Malaysia Perlis, Malaysia
  • Jan Wissink College of Engineering, Design and Physical Sciences, Brunel University London, United Kingdom
  • Mohamed M. Mahmoud Faculty of Engineering, Zagazig University, Egypt
  • Tassos G. Karayiannis College of Engineering, Design and Physical Sciences, Brunel University London, United Kingdom

DOI:

https://doi.org/10.37934/cfdl.15.1.6775

Keywords:

Flow distributions, maldistribution factor, parallel, microchannels, single phase flow

Abstract

This study proposed newly designed inlet manifolds to manage non-uniformity in parallel multi microchannel heat sink by introducing edges with a curved shape were introduced in order to reduce flow-recirculation at the sharp edges. This resulted in a better flow distribution in the parallel channels. A comprehensible numerical study has been performed using ANSYS-Fluent and a three-dimensional computational domain, incorporating the effect of conjugated heat transfer, was employed in this study. R134a was used as the working fluid and copper was selected as the heat sink material. The dimensionless channel flow ratio and flow maldistribution factor were introduced to quantify the flow distribution inside individual channels and the uniformity of this flow distribution. A uniform flow distribution is achieved when the maldistribution factor value approaches 0.

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Author Biographies

Amirah Mohamad Sahar, Faculty of Computer and Mathematical Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia

amirahsahar@uitm.edu.my

Mohamad Shaiful Ashrul Ishak, Faculty of Mechanical Engineering Technology, Universiti Malaysia Perlis, Malaysia

mshaiful@unimap.edu.my

Jan Wissink, College of Engineering, Design and Physical Sciences, Brunel University London, United Kingdom

jan.wissink@brunel.ac.uk

Mohamed M. Mahmoud, Faculty of Engineering, Zagazig University, Egypt

mohamed.mahmoud@brunel.ac.uk 

Tassos G. Karayiannis, College of Engineering, Design and Physical Sciences, Brunel University London, United Kingdom

tassos.karayiannis@brunel.ac.uk

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Published

2023-01-13

How to Cite

Amirah Mohamad Sahar, Mohamad Shaiful Ashrul Ishak, Jan Wissink, Mohamed M. Mahmoud, & Tassos G. Karayiannis. (2023). Flow Distribution in Parallel Rectangular Multi Microchannels in Single Phase. CFD Letters, 15(1), 67–75. https://doi.org/10.37934/cfdl.15.1.6775

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Articles