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Numerical Simulation of the Intensification of the Heat Exchange in a Plane-Parallel Channel with a Cylindrical Shallow Dimple on the Heated Wall

  • HYDROGASDYNAMICS IN TECHNOLOGICAL PROCESSES
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Journal of Engineering Physics and Thermophysics Aims and scope

A comparison of the results of numerical calculations of the convective heat exchange in narrow plane-parallel channels with shallow cylindrical and spherical dimples on their wall heated by a constant heat flow under the conditions of low-velocity turbulent water flow in a channel at Re = 20,000 has been performed. Hydrodynamic features of the vortex intensification of the heat exchange in the indicated channels as a result of the interaction of the swirling flows in them with the side walls of a dimple were determined. The thermal and thermohydraulic efficiencies of a shallow cylindrical dimple were estimated. It is shown that this dimple offers substantial advantages over a spherical dimple of the same depth.

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Authors and Affiliations

  1. A. N. Tupolev Kazan National Research Technical University (Kazan Aviation Institute), 10 K. Marx Str., Kazan, 420111, Russia

    S. A. Isaev, I. A. Popov, A. V. Shchelchkov & I. P. Gabdrakhmanov

  2. N. É. Bauman Moscow State Technical University, 5 2nd Bauman Str., Moscow, 105005, Russia

    A. I. Leontiev

  3. St. Petersburg State University of Civil Aviation, 38 Pilotov Str., St. Petersburg, 196210, Russia

    P. A. Baranov

Authors
  1. S. A. Isaev
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  2. A. I. Leontiev
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  3. P. A. Baranov
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  4. I. A. Popov
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  5. A. V. Shchelchkov
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  6. I. P. Gabdrakhmanov
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Correspondence to S. A. Isaev.

Additional information

Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 89, No. 5, pp. 1195–1210, September–October, 2016.

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Isaev, S.A., Leontiev, A.I., Baranov, P.A. et al. Numerical Simulation of the Intensification of the Heat Exchange in a Plane-Parallel Channel with a Cylindrical Shallow Dimple on the Heated Wall. J Eng Phys Thermophy 89, 1186–1201 (2016). https://doi.org/10.1007/s10891-016-1482-9

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  • DOI: https://doi.org/10.1007/s10891-016-1482-9

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