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Journal of Desert Research ›› 2026, Vol. 46 ›› Issue (3): 32-41.DOI: 10.7522/j.issn.1000-694X.2025.00110

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Wind field disturbance induced by tall vertical sand barriers: a wind tunnel simulation

Xixi Ma1(), Jianhua Xiao2(), Zhengyi Yao2, Xian Xue2,3   

  1. 1.School of History,Culture and Tourism,Fuyang Normal University,Fuyang 236037,Anhui,China
    2.State Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands /, Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    3.Drylands Salinization Research Station, Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
  • Received:2025-06-09 Revised:2025-07-07 Online:2026-05-20 Published:2026-06-11
  • Contact: Jianhua Xiao

Abstract:

Tall vertical high-density polyethylene (HDPE) sand barrier exhibits excellent mechanical properties and durability, demonstrating significant sand-blocking effectiveness in windbreak and sand-fixation projects. It has become a key protective measure widely adopted in areas severely affected by wind-blown sand, such as desert highways. This study employed wind tunnel simulations using sand samples collected from a severely sand-affected section of the S315 highway in Ejin Banner, Inner Mongolia, to investigate airflow disturbances and windbreak performance of sand barriers under varying combinations of barrier heights and incoming wind speeds. The results revealed that the barriers generated a well-defined three-zone structure(deceleration, acceleration, and deposition)on both the windward and leeward sides, with wind speed reduction being more pronounced on the leeward side. As barrier height increased, both deceleration zones expanded, with the leeward zone consistently broader and exhibiting greater wind attenuation in both rate and magnitude. Notably, the protective influence of the barrier extended to a downwind distance of up to 16 times its height (16H).

Key words: tall vertical high-density polyethylene (HDPE) sand barrier, wind tunnel experiments, wind field disturbance, windbreak efficiency

CLC Number: