IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v15y2022i23p9117-d990609.html
   My bibliography  Save this article

Numerical Study on the Unsteady Flow Field Characteristics of a Podded Propulsor Based on DDES Method

Author

Listed:
  • Ziyi Mei

    (School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Bo Gao

    (School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Ning Zhang

    (School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Yuanqing Lai

    (School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Guoping Li

    (Shanghai Marine Equipment Research Institute, Shanghai 200031, China)

Abstract

The podded propulsor has gradually become an important propulsion device for high technology ships in recent years because of its characteristics of high maneuverability, high efficiency, low noise, and vibration. The performance of podded propulsor is closely related to its flow field. To study the unsteady flow field characteristics of podded propulsor, the DDES (delayed detached eddy simulation) method was used to carry out high-precision transient numerical simulations. Results showed that the pod has a significant influence on the unsteady flow field. The rotor–stator interaction between the propeller and pod can be observed, leading to the periodic fluctuation of thrust on the propeller. On the surface of pod, pressure distribution changes with time, leading to the difference of local lateral force. In the spatial region affected by the propeller wake flow, pressure distribution presents a spiral characteristic, both in the region far away from the pod, and in the region of the wake flow of strut and fin. The vortex structures of podded propulsor are complex since the interference of the pod. In addition to the tip, root and hub vortex, strut and fin vortices also occur. The vortices generated by the effect of mutual inductance between vortices are also discussed.

Suggested Citation

  • Ziyi Mei & Bo Gao & Ning Zhang & Yuanqing Lai & Guoping Li, 2022. "Numerical Study on the Unsteady Flow Field Characteristics of a Podded Propulsor Based on DDES Method," Energies, MDPI, vol. 15(23), pages 1-25, December.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:23:p:9117-:d:990609
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/15/23/9117/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/15/23/9117/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Zhang, Ning & Jiang, Junxian & Gao, Bo & Liu, Xiaokai & Ni, Dan, 2020. "Numerical analysis of the vortical structure and its unsteady evolution of a centrifugal pump," Renewable Energy, Elsevier, vol. 155(C), pages 748-760.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Cao, Puyu & Zhu, Rui & Yin, Gang, 2021. "Spike-type disturbances due to inlet distortion in a centrifugal pump," Renewable Energy, Elsevier, vol. 165(P1), pages 288-300.
    2. Yangyang Wei & Yuhui Shi & Weidong Shi & Bo Pan, 2022. "Numerical Analysis and Experimental Study of Unsteady Flow Characteristics in an Ultra-Low Specific Speed Centrifugal Pump," Sustainability, MDPI, vol. 14(24), pages 1-15, December.
    3. Ning Zhang & Delin Li & Junxian Jiang & Bo Gao & Dan Ni & Anthony Akurugo Alubokin & Wenbin Zhang, 2023. "Experimental Investigation on Velocity Fluctuation in a Vaned Diffuser Centrifugal Pump Measured by Laser Doppler Anemometry," Energies, MDPI, vol. 16(7), pages 1-17, April.
    4. Su, Wen-Tao & Binama, Maxime & Li, Yang & Zhao, Yue, 2020. "Study on the method of reducing the pressure fluctuation of hydraulic turbine by optimizing the draft tube pressure distribution," Renewable Energy, Elsevier, vol. 162(C), pages 550-560.
    5. Jian-Cheng Cai & Hao-Jie Chen & Volodymyr Brazhenko & Yi-Hong Gu, 2021. "Study of the Hydrodynamic Unsteady Flow Inside a Centrifugal Fan and Its Downstream Pipe Using Detached Eddy Simulation," Sustainability, MDPI, vol. 13(9), pages 1-19, May.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:15:y:2022:i:23:p:9117-:d:990609. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.