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Numerical Study on the Influence of Vortex Generator Arrangement on Heat Transfer Enhancement of Oil-Cooled Motor

Author

Listed:
  • Junjie Zhao

    (College of Civil Engineering, Tongji University, Shanghai 200092, China
    These authors contributed equally to this work and should be considered co-first authors.)

  • Bin Zhang

    (College of Civil Engineering, Tongji University, Shanghai 200092, China
    These authors contributed equally to this work and should be considered co-first authors.)

  • Xiaoli Fu

    (College of Civil Engineering, Tongji University, Shanghai 200092, China)

  • Shenglin Yan

    (School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China)

Abstract

At present, vortex generators have been extensively used in radiators to improve the overall heat transfer performance. However, there is no research on the effect of vortex generators on the ends of motor coils. Meanwhile, the current research mainly concentrates on the attack angle, shape and size, and lacks a detailed study on the transverse and longitudinal distance and arrangement of vortex generators. In this paper, the improved dimensionless number R is used as the key index to evaluate the overall performance of enhanced heat transfer. Firstly, the influence of the attack angle on heat transfer enhancement is discussed through a single pair of rectangular vortex generators, and the results demonstrate that the vortex generator with a 45° attack angle is superior. On this basis, we compare the effects of different longitudinal distances (2 h , 4 h , and 6 h , h meaning the height of vortex generator) on enhanced heat transfer under four distribution modes: Flow-Up ( FU ) , Flow-Down ( FU ) , Flow-Up-Down ( FUD ) , Flow-Down-UP ( FDU ). Thereafter, the performances of different transverse distances (0.25 h , 0.5 h , and 0.75 h ) of the vortex generators are numerically simulated. When comparing the longitudinal distances, FD with a longitudinal distance of 4 h ( FD- 4 h ) performs well when the Reynolds number is less than 4000, and FU with a longitudinal distance of 4 h ( FU- 4 h ) performs better when the Reynolds number is greater than 4000. Similarly, in the comparison of transverse distances, FD- 4 h still performs well when the Reynolds number is less than 4000, and FU with a longitudinal distance of 4 h and transverse distance of 0.5 h ( FU- 4 h –0.5 h ) is more prominent when the Reynolds number is greater than 4000.

Suggested Citation

  • Junjie Zhao & Bin Zhang & Xiaoli Fu & Shenglin Yan, 2021. "Numerical Study on the Influence of Vortex Generator Arrangement on Heat Transfer Enhancement of Oil-Cooled Motor," Energies, MDPI, vol. 14(21), pages 1-17, October.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:21:p:6870-:d:660457
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    References listed on IDEAS

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    1. Robert Lehmann & Arthur Petuchow & Matthias Moullion & Moritz Künzler & Christian Windel & Frank Gauterin, 2020. "Fluid Choice Based on Thermal Model and Performance Testing for Direct Cooled Electric Drive," Energies, MDPI, vol. 13(22), pages 1-13, November.
    2. Ebrahimi, Amin & Rikhtegar, Farhad & Sabaghan, Amin & Roohi, Ehsan, 2016. "Heat transfer and entropy generation in a microchannel with longitudinal vortex generators using nanofluids," Energy, Elsevier, vol. 101(C), pages 190-201.
    3. Lei Chai & Savvas A. Tassou, 2018. "A Review of Airside Heat Transfer Augmentation with Vortex Generators on Heat Transfer Surface," Energies, MDPI, vol. 11(10), pages 1-45, October.
    4. Liu, S. & Sakr, M., 2013. "A comprehensive review on passive heat transfer enhancements in pipe exchangers," Renewable and Sustainable Energy Reviews, Elsevier, vol. 19(C), pages 64-81.
    5. Arun Mambazhasseri Divakaran & Dean Hamilton & Krishna Nama Manjunatha & Manickam Minakshi, 2020. "Design, Development and Thermal Analysis of Reusable Li-Ion Battery Module for Future Mobile and Stationary Applications," Energies, MDPI, vol. 13(6), pages 1-22, March.
    6. Lotfi, Babak & Sundén, Bengt & Wang, Qiuwang, 2016. "An investigation of the thermo-hydraulic performance of the smooth wavy fin-and-elliptical tube heat exchangers utilizing new type vortex generators," Applied Energy, Elsevier, vol. 162(C), pages 1282-1302.
    7. Taewook Ha & Nyeon Gu Han & Min Soo Kim & Kyu Heon Rho & Dong Kyu Kim, 2021. "Experimental Study on Behavior of Coolants, Particularly the Oil-Cooling Method, in Electric Vehicle Motors Using Hairpin Winding," Energies, MDPI, vol. 14(4), pages 1-15, February.
    8. Agung Tri Wijayanta & Muhammad Aziz & Keishi Kariya & Akio Miyara, 2018. "Numerical Study of Heat Transfer Enhancement of Internal Flow Using Double-Sided Delta-Winglet Tape Insert," Energies, MDPI, vol. 11(11), pages 1-15, November.
    9. Edison Gundabattini & Arkadiusz Mystkowski & Adam Idzkowski & Raja Singh R. & Darius Gnanaraj Solomon, 2021. "Thermal Mapping of a High-Speed Electric Motor Used for Traction Applications and Analysis of Various Cooling Methods—A Review," Energies, MDPI, vol. 14(5), pages 1-32, March.
    10. Fulai Guo & Chengning Zhang, 2019. "Oil-Cooling Method of the Permanent Magnet Synchronous Motor for Electric Vehicle," Energies, MDPI, vol. 12(15), pages 1-11, August.
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    Cited by:

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    2. Artur S. Bartosik, 2022. "Numerical Heat Transfer and Fluid Flow: A Review of Contributions to the Special Issue," Energies, MDPI, vol. 15(8), pages 1-8, April.
    3. Artur S. Bartosik, 2023. "Numerical Heat Transfer and Fluid Flow: New Advances," Energies, MDPI, vol. 16(14), pages 1-7, July.

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