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Numerical Simulation of Heat Transfer Enhancement in the Paths of Propulsion Systems with Single-Row Spherical and Oval Dimples on the Wall

Author

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  • Sergey Isaev

    (Research Department, Saint-Petersburg State Marine Technical University, Lotsmanskaya Str., 3, 190121 Saint-Petersburg, Russia
    Research Department, Saint-Petersburg State University of Civil Aviation, Pilots Str. 38, 196210 Saint-Petersburg, Russia)

  • Dmitry Nikushchenko

    (Research Department, Saint-Petersburg State Marine Technical University, Lotsmanskaya Str., 3, 190121 Saint-Petersburg, Russia)

  • Alexandr Sudakov

    (Research Department, Saint-Petersburg State University of Civil Aviation, Pilots Str. 38, 196210 Saint-Petersburg, Russia)

  • Nikita Tryaskin

    (Research Department, Saint-Petersburg State Marine Technical University, Lotsmanskaya Str., 3, 190121 Saint-Petersburg, Russia)

  • Leonid Iunakov

    (Research Department, Baltic State Technical University, 1-a Krasnoarmejskaya Str., 1, 190005 Saint-Petersburg, Russia)

  • Alexandr Usachov

    (Research Department, N.E. Zhukovskii Central Aerohydrodynamic Institute, Radio Str., 17, 107005 Moscow, Russia)

  • Valery Kharchenko

    (Research Department, Saint-Petersburg State University of Civil Aviation, Pilots Str. 38, 196210 Saint-Petersburg, Russia)

Abstract

Modeling the vortex intensification of turbulent heat transfer in narrow engine ducts using single-row dimples was carried out within the framework of multi-block computing technologies implemented in a special VP2/3 package. The cases of a rectangular section with the placement of vortex generators—single-row packages of oval and spherical dimples on the initial hydrodynamic section and the section of the stabilized flow are excluded. The connection between the generated vortex structures and the predominant increase in heat transfer compared to the increase in hydraulic losses for various dimple layouts has been established: zigzag, ladder, and centers shifted and in a longitudinal-transverse order. The superiority in heat removal from the thickness with inclined oval dimples is shown—1.23 times compared to spherical ones with a decay in hydraulic resistance by 1.16 times.

Suggested Citation

  • Sergey Isaev & Dmitry Nikushchenko & Alexandr Sudakov & Nikita Tryaskin & Leonid Iunakov & Alexandr Usachov & Valery Kharchenko, 2022. "Numerical Simulation of Heat Transfer Enhancement in the Paths of Propulsion Systems with Single-Row Spherical and Oval Dimples on the Wall," Energies, MDPI, vol. 15(19), pages 1-17, September.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:19:p:7198-:d:930103
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    References listed on IDEAS

    as
    1. Sergey Isaev & Alexandr Leontiev & Yaroslav Chudnovsky & Dmitry Nikushchenko & Igor Popov & Alexandr Sudakov, 2019. "Simulation of Vortex Heat Transfer Enhancement in the Turbulent Water Flow in the Narrow Plane-Parallel Channel with an Inclined Oval-trench Dimple of Fixed Depth and Spot Area," Energies, MDPI, vol. 12(7), pages 1-24, April.
    2. Sergey Isaev & Dmitry Nikushchenko & Alexandr Sudakov & Nikita Tryaskin & Ann Egorova & Leonid Iunakov & Alexandr Usachov & Valery Kharchenko, 2021. "Standard and Modified SST Models with the Consideration of the Streamline Curvature for Separated Flow Calculation in a Narrow Channel with a Conical Dimple on the Heated Wall," Energies, MDPI, vol. 14(16), pages 1-23, August.
    3. Rashidi, Saman & Hormozi, Faramarz & Sundén, Bengt & Mahian, Omid, 2019. "Energy saving in thermal energy systems using dimpled surface technology – A review on mechanisms and applications," Applied Energy, Elsevier, vol. 250(C), pages 1491-1547.
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