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Study on the Wake Characteristics of the Loess Plateau Terrain Based on Wind Tunnel Experiment

Author

Listed:
  • Yulong Ma

    (School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou 730050, China)

  • Shoutu Li

    (School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou 730050, China
    Key Laboratory of Fluid Machinery and Systems, Lanzhou 730050, China)

  • Deshun Li

    (School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou 730050, China
    Key Laboratory of Fluid Machinery and Systems, Lanzhou 730050, China)

  • Zhiteng Gao

    (Institute of Energy Science, College of Engineering, Shantou University, Shantou 515063, China)

  • Xingduo Guo

    (School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou 730050, China)

  • Qingdong Ma

    (School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou 730050, China)

Abstract

The northwest region of China’s loess plateau is an important area for wind power development. However, the unclear understanding of the evolution mechanism of the near-ground atmospheric boundary layer (ABL), which is influenced by its unique geomorphological features, has compromised the safety and stability of wind turbine operations. To address this challenge, wind tunnel experiments were conducted to investigate the mean and turbulent characteristics of wake flow generated by mountains in the loess plateau. The results indicate that the terrain significantly affects both the average velocity deficit and turbulence intensity distribution within the wake. Specifically, topographic features dominate turbulent energy transfer and modulate coherent structures in the inertial subrange. Additionally, the scale of these features enhances turbulence energy input at corresponding scales in the fluctuating wind speed spectrum, leading to a non-decaying energy interval within the inertial subregion.

Suggested Citation

  • Yulong Ma & Shoutu Li & Deshun Li & Zhiteng Gao & Xingduo Guo & Qingdong Ma, 2025. "Study on the Wake Characteristics of the Loess Plateau Terrain Based on Wind Tunnel Experiment," Energies, MDPI, vol. 18(4), pages 1-16, February.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:4:p:958-:d:1593189
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    References listed on IDEAS

    as
    1. Giuliano Demarco & Luis Gustavo Nogueira Martins & Bardo Ernst Josef Bodmann & Franciano Scremin Puhales & Otávio Costa Acevedo & Adrian Roberto Wittwer & Felipe Denardin Costa & Debora Regina Roberti, 2022. "Analysis of Thermal and Roughness Effects on the Turbulent Characteristics of Experimentally Simulated Boundary Layers in a Wind Tunnel," IJERPH, MDPI, vol. 19(9), pages 1-14, April.
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