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Effect of Patch Length on Electroosmotic Mixing Characteristics Inside a Heterogeneously Charged Micromixer

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Techno-Societal 2022 (ICATSA 2022)

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Abstract

The flow and mixing attributes within a micromixer with heterogeneous surface charge is investigated. The finite element approach is used to numerically compute the governing transport equations. By varying the patch lengths (HP) and the diffusive Peclet number (Pe) in the physically reasonable span, the flow field, dimensionless flow rate, recirculation velocity (UR), species concentration field, and mixing efficiency (\(\eta\)) are explored. It reveals that as patch length is increased, the size of the regions of recirculation and UR both augment while an increment in patch length diminishes the flow rate. Moreover, as HP increases, the homogeneity of the outlet dimensionless species concentration improves and gets closer to 0.5. There is a critical Pe (Pecri,1) over which mixing efficiency is 100% for all HP and Pecri,1 increases as HP increases. Contrarily, for Pe > Pecri,1, mixing efficiency decreases as Pe increases.

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References

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Authors and Affiliations

  1. Department of Mechanical Engineering, National Institute of Technology Silchar, Silchar, 788010, India

    Anindya Nath, Sumit Kumar Mehta & Sukumar Pati

Authors
  1. Anindya Nath
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  2. Sumit Kumar Mehta
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  3. Sukumar Pati
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Corresponding author

Correspondence to Anindya Nath .

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Editors and Affiliations

  1. SVERI’s College of Engineering, Pandharpur, Pandharpur, Maharashtra, India

    Prashant M. Pawar

  2. SVERI’s College of Engineering, Pandharpur, Pandharpur, Maharashtra, India

    Babruvahan P. Ronge

  3. SVERI’s College of Engineering, Pandharpur, Pandharpur, Maharashtra, India

    Ranjitsinha R. Gidde

  4. SVERI’s College of Engineering, Pandharpur, Pandharpur, Maharashtra, India

    Meenakshi M. Pawar

  5. SVERI's College of Engineering (Polytechnic), Pandharpur, Pandharpur, Maharashtra, India

    Nitin D. Misal

  6. SVERI’s College of Engineering, Pandharpur, Gopalpur, Maharashtra, India

    Anupama S. Budhewar

  7. SVERI’s College of Pharmacy, Pandharpur, Pandharpur, Maharashtra, India

    Vrunal V. More

  8. Amity University, Dubai, United Arab Emirates

    P. Venkata Reddy

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Nath, A., Mehta, S.K., Pati, S. (2024). Effect of Patch Length on Electroosmotic Mixing Characteristics Inside a Heterogeneously Charged Micromixer. In: Pawar, P.M., et al. Techno-Societal 2022. ICATSA 2022. Springer, Cham. https://doi.org/10.1007/978-3-031-34648-4_89

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  • DOI: https://doi.org/10.1007/978-3-031-34648-4_89

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-031-34647-7

  • Online ISBN: 978-3-031-34648-4

  • eBook Packages: EngineeringEngineering (R0)

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