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Study of flow uniformity within convergent microchannels with a circular manifold

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Abstract

Velocity distribution among microchannels has a significant effect on the cooling performance of heat transfer fluids in contact with the heat sinks. In this study, a novel circular manifold’s practical role in the fluid distribution and flow uniformity among microchannels is investigated. Twenty microchannels are placed around the circular manifold as their cross section varies with convergence or divergence angles ranging from 0 to 10°, leading to the Reynolds numbers of 10, 88, 300, 500, and 1000. The influence of the manifold geometry, microchannel characteristics, and Reynolds number on flow uniformity is investigated. The results reveal that the maximum flow uniformity is obtained for four inlets around the manifold and an outlet in its center where the convergence angle of microchannels is 6°.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Shahrekord University, Shahrekord, Iran

    Roya Mohammadali & Morteza Bayareh

  2. Department of Mechanical Engineering, University of Kashan, Kashan, Iran

    Ghanbar Ali Sheikhzadeh

Authors
  1. Roya Mohammadali
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  2. Morteza Bayareh
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  3. Ghanbar Ali Sheikhzadeh
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Correspondence to Morteza Bayareh.

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Communicated by Daniel Onofre de Almeida Cruz.

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Mohammadali, R., Bayareh, M. & Sheikhzadeh, G.A. Study of flow uniformity within convergent microchannels with a circular manifold. J Braz. Soc. Mech. Sci. Eng. 43, 74 (2021). https://doi.org/10.1007/s40430-020-02784-7

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  • DOI: https://doi.org/10.1007/s40430-020-02784-7

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