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International Journal of Fluid Mechanics Research

Publicado 6 números por año

ISSN Imprimir: 2152-5102

ISSN En Línea: 2152-5110

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.1 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.0002 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.33 SJR: 0.256 SNIP: 0.49 CiteScore™:: 2.4 H-Index: 23

Indexed in

UTILIZING MICROCAVITY SHAPES FOR DRAG REDUCTION IN MICROCHANNELS

Volumen 49, Edición 2, 2022, pp. 49-67
DOI: 10.1615/InterJFluidMechRes.2022040448
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SINOPSIS

Introduction of surface microtexturing has led to several possibilities of drag reduction in microchannels. Major contributions in this field are the prevention of Cassie−Wenzel state transition and the utilization of Cassie-Baxter state for drag reduction in microchannels. In the present numerical work, the drag reduction ability of microcavity assisted microchannels under Wenzel state, which has gained less attention from researchers, is reported on. In order to present the significance of utilization of microcavities in microchannels, ten different microcavity shapes are considered for analysis. Moreover, the effect of geometrical parameters related to microchannels such as hydraulic diameter and cross-sectional shapes on Poiseuille number is presented to identify possible drag reduction ability. Five cross-sectional shapes are considered in this work. Results of the investigation revealed the significant drag reduction ability of the microchannel with triangular cross-section and square cavity shape. Moreover, the present work is extended by considering the triangular cross-sectioned microchannel for geometrical optimization such as change in hydraulic diameter, different triangular cross-sectional shapes, and channel length. In addition, the cavity geometry is also considered for the analysis, and the best values in assistance with triangular cross-sectioned microchannel are presented. The maximum drag reductions of 73% and 64% are obtained in comparison with the smooth one at the Reynolds numbers of 10 and 120, respectively. Results of the present work provide new insight to researchers in this field to consider microcavity assisted microchannels for possible drag reduction under Wenzel state.

REFERENCIAS
  1. Ageev, A.I. and Osiptsov, A.N., Slow Viscous Flow in a Microchannel with Similar and Different Superhydrophobic Walls, J. Phys.: Conf. Ser, vol. 1141, no. 1, Article ID 012134, 2018.

  2. Ageev, A. and Osiptsov, A., Stokes Flow in a Microchannel with Superhydrophobic Walls, Fluid Dynamics, vol. 54, no. 2, pp. 205-217, 2019.

  3. Akhtari, M.R. and Karimi, N., Thermohydraulic Analysis of a Microchannel with Varying Superhydrophobic Roughness, Appl. Therm. Eng., vol. 172, Article ID 115147, 2020.

  4. Allcock, H.R., Steely, L.B., and Singh, A., Hydrophobic and Superhydrophobic Surfaces from Polyphosphazenes, Polymer Int., vol. 55, no. 6, pp. 621-625, 2006.

  5. Byun, D., Kim, J., Ko, H.S., and Park, H.C., Direct Measurement of Slip Flows in Superhydrophobic Microchannels with Transverse Grooves, Phys. Fluids, vol. 20, no. 11, Article ID 113601,2008.

  6. Cheng, Y., Teo, C., and Khoo, B., Microchannel Flows with Superhydrophobic Surfaces: Effects of Reynolds Number and Pattern Width to Channel Height Ratio, Phys. Fluids, vol. 21, no. 12, Article ID 122004,2009.

  7. Choi, C.-H., Ulmanella, U., Kim, J., Ho, C.-M., and Kim, C.-J., Effective Slip and Drag Reduction in Nanograted Superhydrophobic Microchannels, Phys. Fluids, vol. 18, no. 8, Article ID 087105,2006.

  8. Choo, S., Choi, H.-J., and Lee, H., Replication of Rose-Petal Surface Structure Using UV-Nanoimprint Lithography, Mater. Lett:., vol. 121, pp. 170-173,2014.

  9. Cui, J., Li, W., and Lam, W.-H., Numerical Investigation on Drag Reduction with Superhydrophobic Surfaces by Lattice-Boltzmann Method, Comput. Math. Appl., vol. 61, no. 12, pp. 3678-3689, 2011.

  10. Daniello, R.J., Waterhouse, N.E., and Rothstein, J.P., Drag Reduction in Turbulent Flows over Superhydrophobic Surfaces, Phys. Fluids, vol. 21, no. 8, Article ID 085103, 2009.

  11. Darmanin, T. and Guittard, F., Superhydrophobic and Superoleophobic Properties in Nature, Mater. Today, vol. 18, no. 5, pp. 273-285,2015.

  12. Davies, J., Maynes, D., Webb, B., and Woolford, B., Laminar Flow in a Microchannel with Superhydrophobic Walls Exhibiting Transverse Ribs, Phys. Fluids, vol. 18, no. 8, Article ID 087110, 2006.

  13. Dilip, D., Kumar, S.V., Bobji, M., and Govardhan, R.N., Sustained Drag Reduction and Thermo-Hydraulic Performance Enhancement in Textured Hydrophobic Microchannels, Int. J. Heat Mass Transf., vol. 119, pp. 551-563, 2018.

  14. Enright, R., Eason, C., Dalton, T., Hodes, M., Salamon, T., Kolodner, P., and Krupenkin, T., Friction Factors and Nusselt Numbers in Microchannels with Superhydrophobic Walls, in Int. Conf. on Nanochannels, Microchannels, and Minichannels, vol. 47608, pp. 599-609, 2006.

  15. Gaddam, A., Agrawal, A., Joshi, S.S., and Thompson, M.C., Utilization of Cavity Vortex to Delay the Wetting Transition in One-Dimensional Structured Microchannels, Langmuir, vol. 31, no. 49, pp. 13373-13384, 2015.

  16. Gould, P., Smart, Clean Surfaces, Mater. Today, vol. 6, no. 11, pp. 44-48, 2003.

  17. Guo, Z., Liu, W., and Su, B.-L., Superhydrophobic Surfaces: From Natural to Biomimetic to Functional, J. Colloid Interf. Sci., vol. 353, no. 2, pp. 335-355,2011.

  18. Heidarian, A., Rafee, R., and Valipour, M.S., Hydrodynamic Analysis of the Nanofluids Flow in a Microchannel with Hydrophobic and Superhydrophobic Surfaces, J. Taiwan Inst. Chem. Eng., vol. 124, pp. 266-275,2021.

  19. Kant, K., Singh, S., and Dhiman, P., Fluid Flow and Heat Transfer Characteristics within a Rectangular Microchannel Array of Different Manifold Shapes-Modelisation and Optimisation Using CFD and Response Surface Methodology, Progress in Comput. Fluid Dynamics, An Int. J, vol. 18, no. 1, pp. 19-32, 2018.

  20. Kant, K. and Pitchumani, R., Laminar Drag Reduction in Microchannels with Liquid Infused Textured Surfaces, Chem. Eng. Sci, vol. 230, Article ID 116196,2021.

  21. Kim, M.-H., Kim, H., Lee, K.-S., and Kim, D.R., Frosting Characteristics on Hydrophobic and Superhydrophobic Surfaces: A Review, Energy Convers. Manag., vol. 138, pp. 1-11, 2017.

  22. Kim, T.J. and Hidrovo, C., Pressure and Partial Wetting Effects on Superhydrophobic Drag Reduction in Microchannel Flow, Phys. Fluids, vol. 24, no. 11, Article ID 112003, 2012.

  23. Li, C., Zhang, S., Xue, Q., and Ye, X., Simulation of Drag Reduction in Superhydrophobic Microchannels Based on Parabolic Gas-Liquid Interfaces, Phys. Fluids, vol. 28, no. 10, Article ID 102004, 2016.

  24. Li, Y., Li, L., and Sun, J., Bioinspired Self-Healing Superhydrophobic Coatings, Angewandte Chem. Int. Ed., vol. 49, no. 35, pp. 6129-6133,2010.

  25. Liu, M., Wang, S., and Jiang, L., Nature-Inspired Superwettability Systems, Nature Rev. Mater., vol. 2, no. 7, pp. 1-17, 2017.

  26. Rothstein, J.P., Slip on Superhydrophobic Surfaces, Annu. Rev. FluidMech., vol. 42, pp. 89-109, 2010.

  27. Teo, C. and Khoo, B., Analysis of Stokes Flow in Microchannels with Superhydrophobic Surfaces Containing a Periodic Array of Micro-Grooves, Microfluidics Nanofluidics, vol. 7, no. 3, pp. 353-382, 2009.

  28. Wang, G., Guo, Z., and Liu, W., Interfacial Effects of Superhydrophobic Plant Surfaces: A Review, J. Bionic Eng., vol. 11, no. 3, pp. 325-345, 2014.

  29. Woolford, B., Maynes, D., and Webb, B., Liquid Flow through Microchannels with Grooved Walls under Wetting and Superhy-drophobic Conditions, Microfluidics Nanofluidics, vol. 7, no. 1, pp. 121-135, 2009.

  30. Xu, M., Lu, H., Gong, L., Chai, J.C., and Duan, X., Parametric Numerical Study of the Flow and Heat Transfer in Microchannel with Dimples, Int. Commun. Heat Mass Transf., vol. 76, pp. 348-357,2016.

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