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Journal of Flow Visualization and Image Processing

Published 4 issues per year

ISSN Print: 1065-3090

ISSN Online: 1940-4336

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: 0.6 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.6 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: 0.00013 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: 0.14 SJR: 0.201 SNIP: 0.313 CiteScore™:: 1.2 H-Index: 13

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EFFECT OF TRIANGULAR MICROGROOVES ON DRAG REDUCTION IN RECTANGULAR PIPE FLOW

Volume 26, Issue 2, 2019, pp. 149-167
DOI: 10.1615/JFlowVisImageProc.2019028998
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ABSTRACT

It has been known for decades that turbulent flow may benefit greatly from drag reduction provided by microgrooves. The original inspiration came from mimicking the surface microstructures of the skin of fast swimming sharks. For the great potential benefit of application in long-distance pipeline transportation of oil or tap water, streamwise-aligned microgrooves are used in a rectangular pipe flow in this study. A detailed experimental system is discussed and the microgroove geometries are defined. Pressure drop collected using different h/s ratio microgrooves of microgrooved surfaces fabricated for the flow cell is provided and the drag reduction rate is analyzed and compared to the results of previous researches. To explore the mechanism of drag reduction of microgrooves, a visualization test by a particle image velocimetry (PIV) is conducted, and the detailed flow field, including the instantaneous mean velocity, Reynolds shear stress, turbulent intensities, and the vorticity is presented and discussed. Moreover, the drag reduction mechanism of microgrooves is proposed and discussed.

REFERENCES
  1. Bacher, E. and Smith, C., A Combined Visualization-Anemometry Study of the Turbulent Drag Reducing Mechanisms of Triangular Micro-Groove Surface Modifications, Shear Flow Control Conference, American Institute of Aeronautics and Astronautics, Boulder, CO, March 12-14, 1985.

  2. Bechert, D.W. and Bartenwerfer, M., The Viscous Flow on Surfaces with Longitudinal Ribs, J. Fluid Mech, vol. 206, pp. 105-129, 1989.

  3. Bechert, D.W., Bartenwerfer, M., Hoppe, G., and Reif, W.E., Drag Reduction Mechanisms Derived from Shark Skin, ICAS, Congress, London, England, vol. 2, pp. 1044-1068, 1986.

  4. Bechert, D.W., Bruse, M., Hage, W., Van, d.H., J.G.T, and Hoppe, G., Experiments on Drag-Reducing Surfaces and Their Optimization with an Adjustable Geometry, J. Fluid Mech., vol. 338, pp. 59-87, 1997.

  5. Bixler, G.D. and Bhushan, B., Fluid Drag Reduction with Shark-Skin Riblet Inspired Microstructured Surfaces, Adv. Function. Mater., vol. 23, no. 36, pp. 4507-4528, 2013.

  6. Boomsma, A. and Sotiropoulos F., Riblet Drag Reduction in Mild Adverse Pressure Gradients: A Numerical Investigation, Int. J. Heat Fluid Flow, vol. 56, pp. 251-260, 2015.

  7. Chamorro, L.P., Arndt, R.E.A., and Sotiropoulos, F., Drag Reduction of Large Wind Turbine Blades through Riblets: Evaluation of Riblet Geometry and Application Strategies, Renew. Energy, vol. 50, no. 3, pp. 1095-1105, 2013.

  8. Choi, H., Parviz, M., and Kim, J., Direct Numerical Simulation of Turbulent Flow over Riblets, J. Fluid Mech, vol. 255, pp. 503-539, 1993.

  9. Choi, K.S., Effects of Longitudinal Pressure Gradients on Turbulent Drag Reduction with Riblets, Dordrecht, Netherlands: Springer, pp. 109-121, 1990.

  10. Choi, K.S., Near-Wall Structure of a Turbulent Boundary Layer with Riblets, J. Fluid Mech., vol. 208, pp. 417-458, 1989.

  11. Dean, B. and Bhushan, B., The Effect of Riblets in Rectangular Duct Flow, Appl. Surface Sci., vol. 258, no. 8, pp. 3936-3947, 2012.

  12. Dean, R.B, Reynolds Number Dependence of Skin Friction and Other Bulk Flow Variables in Two-Dimensional Rectangular Duct Flow, J. Fluids Eng., vol. 100, no. 2, pp. 215-223, 1978.

  13. El-Samni, O.A., Chun, H.H., and Yoon, H.S., Drag Reduction of Turbulent Flow over Thin Rectangular Riblets, Int. J. Eng. Sci, vol. 45, no. 2, pp. 436-454, 2007.

  14. Enyutin, G.V., Lashkov, Y.A., and Samoilova, N.V., Drag Reduction in Riblet-Lined Pipes, Fluid Dyn., vol. 30, no. 1, pp. 45-48, 1995.

  15. Flack, K.A., Schultz, M.P., Barros, J.M., and Kim, Y.C., Skin-Friction Behavior in the Transitionally-Rough Regime, Int. J. Heat Fluid Flow, vol. 61, Part A, pp. 21-30, 2016.

  16. Frohnapfel, B., Jovanovic, J., and Delgado, A., Experimental Investigations of Turbulent Drag Reduction by Surface-Embedded Grooves, J. Fluid Mech, vol. 590, pp. 107-116, 2007.

  17. Gallagher, J. and Thomas, A., Turbulent Boundary Layer Characteristics over Streamwise Grooves, Applied Aerodynamics Conf., American Institute of Aeronautics and Astronautics, Seattle, WA, August 21-23, 1984.

  18. Huang, C., Liu, D., and Wei, J., Experimental Study on Drag Reduction Performance of Surfactant Flow in L Ongitudinal Grooved Channels, Chem. Eng. Sci., vol. 152, pp. 267-279, 2016.

  19. Jung, Y.C. and Bhushan, B., Biomimetic Structures for Fluid Drag Reduction in Laminar and Turbulent Flows, J. Phys. Condensed Matter, An Inst. Phys. J., vol. 22, no. 3, p. 035104, 2010.

  20. Lazos, B. and Wilkinson, S.P., Turbulent Viscous Drag Reduction with Thin-Element Riblets, AIAA J., vol. 26, no. 4, pp. 496-498, 1988.

  21. Liu, K.N., Christodoulou, C., Riccius, O., and Joseph, D.D., Drag Reduction in Pipes Lined with Riblets, AIAA J., vol. 28, no. 28, pp. 1697-1699, 1989.

  22. Martin, S. and Bhushan, B., Fluid Flow Analysis of Continuous and Segmented Riblet Structures, RSC Adv., vol. 6, no. 13, pp. 10962-10978, 2016a.

  23. Martin, S. and Bhushan, B., Modeling and Optimization of Shark-Inspired Riblet Geometries for Low Drag Applications, J. Colloid Interface Sci., vol. 474, pp. 206-215, 2016b.

  24. Ng, J.H., Jaiman, R.K., and Lim, T.T., Direct Numerical Simulation of Geometric Effects on Turbulent Flows over Riblets, 7th AIAA Flow Control Conference, Atlanta, GA, 2014.

  25. Rohr, J.J., Andersen, G.W., Reidy, L.W., and Hendricks, E.W., A Comparison of the Drag-Reducing Benefits of Riblets in Internal and External Flows, Exp. Fluids, vol. 13, no. 6, pp. 361-368, 1992.

  26. Walsh, M., Turbulent Boundary Layer Drag Reduction using Riblets, 20th Aerospace Sciences Meeting, American Institute of Aeronautics and Astronautics, Orlando, FL, January 11-14, 1982.

  27. Walsh, M. and Lindemann, A, Optimization and Application of Riblets for Turbulent Drag Reduction, 22nd Aerospace Sciences Meeting, American Institute of Aeronautics and Astronautics, Reno, NV, January 9-12, 1984.

  28. Walsh, M.J., Drag Characteristics of V-Groove and Transverse Curvature Riblets, Symp. on Viscous Flow Drag Reduction, Dallas, TX, November 7-8, 1979, vol. 72, pp. 168-184, 1980.

  29. Wang, J.J., Lan, S.L., and Chen, G., Experimental Study on The Turbulent Boundary Layer Flow over Riblets Surface, Fluid Dyn. Res, vol. 27, no. 4, pp. 217-229, 2000.

  30. Zhang, D.Y., Luo, Y.H., Xiang, L.I., and Chen, H.W., Numerical Simulation and Experimental Study of Drag-Reducing Surface of a Real Shark Skin, J. Hydrodyn., Ser. B, vol. 23, no. 2, pp. 204-211, 2011.

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