Abstract
In this paper, we analyze the intensification of the separated flow and heat transfer in single-row, oval-trench dimples with a 45° incline on the heated wall of a narrow channel in the stabilization section of a turbulent flow at Re = 104. Anomalously high velocities of the return and secondary flows (on the order of the average mass velocity in the channel), as well as in the entrance part of the dimples, and a multiple excess of the absolute values of negative friction (4.5 times) and heat fluxes (five times) over the friction and Nusselt number on the heated wall of a plane-parallel smooth channel were found. The connection of this phenomenon with the total pressure difference between the close zones of flow deceleration on the windward slope of the dimple and rarefaction at the place of generation of a tornado-like vortex structure was established. The uncertainties in numerical predictions with the use of various grids and semi-empirical turbulence models in the StarCCM+ and VP2/3 packages are discussed.
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REFERENCES
Vikhrevye tekhnologii dlya energetiki (Vortex Technologies for Power Engineering), Leontiev, A.I., Ed., Moscow: Mosk. Energ. Inst., 2005.
Rashidi, S., Hormozi, F., Sunden, B., and Mahian, O., Appl. Energy, 2019, vol. 259, p. 1491.
Isaev, S.A., Schelchkov, A.V., Leontiev, A.I., Gortyshov, Yu.F., Baranov, P.A., and Popov, I.A., Int. J. Heat Mass Transfer, 2017, vol. 109, p. 40.
Isaev, S., Leontiev, A., Chudnovsky, Y., and Popov, I., J. Enhanced Heat Transfer, 2018, vol. 25, no. 6, p. 579.
Isaev, S., Leontiev, A., Chudnovsky, Y., Nikushchenko, D., Popov, I., and Sudakov, A., Energies, 2019, vol. 12, no. 7, 1296.
Isaev, S.A., Leont’ev, A.I., Kornev, N.V., Hassel, E., and Chudnovskii, Ya.P., High Temp., 2015, vol. 53, no. 3, p. 375.
Isaev, S.A., Leont’ev, A.I., Mil’man, O.O., Sudakov, A.G., Usachov, A.E., and Gul’tsova, M.E., J. Eng. Phys. Thernophys., 2018, vol. 91, no. 4, p. 963.
Isaev, S.A., Leontiev, A.I., Milman, O.O., Popov, I.A., and Sudakov, A.G., Int. J. Heat Mass Transfer, 2019, vol. 134, p. 338.
Isaev, S., Gritckevich, M., Leontiev, A., and Popov, I., Acta Astronaut., 2019, vol. 163, part A, p. 202.
Isaev, S.A., Gritskevich, M.S., Leontiev, A.I., Popov, I.A., and Sudakov, A.G., High Temp., 2019, vol. 57, no. 5, p. 771.
Isaev, S.A., Gritskevich, M.S., Leontyev, A.I., Mil’man, O.O., and Nikushchenko, D.V., Thermophys. Aeromech., 2019, vol. 26, no. 5, p. 651.
Isaev, S.A., Gritckevich, M.S., Leontiev, A.I., Milman, O.O., and Nikushchenko, D.V., Int. J. Heat Mass Transfer, 2019, vol. 145, 118737.
Isaev, S.A., Kornev, N.V., Leontiev, A.I., and Hassel, E., Int. J. Heat Mass Transfer, 2010, vol. 53, nos. 1–3, p. 178.
Isaev, S.A., Baranov, P.A., and Usachov, A.E., Mnogoblochnye vychislitel’nye tekhnologii v pakete VP2/3 po aerotermodinamike (Multi-unit Computing Technologies in the VP2/3 Package for Aerothermodynamics), Saarbrüken: LAP, 2013.
Isaev, S., Baranov, P., Popov, I., Sudakov, A., Usachov, A., Guvernyuk, S., Sinyavin, A., Chulyunin, A., Mazo, A., Demidov, D., Dekterev, A., Gavrilov, A., and Shebelev, A., Comput. Fluids, 2019, vol. 188, p. 1.
Shih, T.H., Liou, W.W., Shabbir, A., Yang, Z.D., and Zhu, J., Comput. Fluids, 1995, vol. 24, no. 3, p. 227.
Wolfstein, M., Int. J. Heat Mass Transfer, 1969, vol. 12, p. 301.
Durbin, P.A., Int. J. Heat Fluid Flow, 1996, vol. 17, p. 89.
Spalart, P.R. and Allmaras, S.R., A one-equation turbulence model for aerodynamic Flows, AIAA-92-0439, 1992.
Dacles-Mariani, J., Zilliac, G., Chow, J.S., and Bradshaw, P., AIAA J., 1995, vol. 33, no. 9, p. 1561.
Venkatakrishnan, V., J. Comput. Phys., 1995, vol. 118, no. 1, p. 120.
Weiss, J.M., Maruszewski, J.P., and Smith, W.A., AIAA J., 1999, vol. 37, no. 1, p. 29.
Terekhov, V., Kalinina, S., and Mshvidobadze, Yu., J. Enhanced Heat Transfer, 1997, vol. 4, p. 131.
Abo Amsha, K., Craft, T.J., and Iacovides, H., Aeronaut. J., 2017, vol. 121, no. 1242, p. 1066.
Kwon, H.G., Hwang, S.D., and Cho, H.H., Int. J. Heat Mass Transfer, 2011, vol. 54, p. 1071.
Rao, Y., Li, B., and Feng, Y., Exp. Therm. Fluid Sci., 2015, vol. 61, p. 201.
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This work was supported by the Russian Science Foundation, grant no. 19-19-00259.
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Isaev, S.A., Chulyunin, A.Y., Nikushchenko, D.V. et al. Analysis of the Anomalous Intensification of a Separate Flow and Heat Transfer in a Stabilized Section of a Narrow Channel with Single-Row, Inclined, Oval-Trench Dimples with the Use of Various Grids and Turbulence Models. High Temp 59, 106–114 (2021). https://doi.org/10.1134/S0018151X21010041
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DOI: https://doi.org/10.1134/S0018151X21010041