Experimental and numerical simulation of road dust distribution and transport characteristics under disturbance of automobile tire in open-pit mine

IF 4.9 2区工程技术 Q1 ENGINEERING, CIVIL

Journal of Wind Engineering and Industrial Aerodynamics Pub Date : 2025-08-25 DOI:10.1016/j.jweia.2025.106214

Jiuzhu Wang , Zhenmin Luo , Guoliang Zhang , Jihe Chen , Cuifeng Du , Yapeng Wang , Xuhan Ding

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Abstract

To develop targeted measures, understanding the distribution and transport of road dust under disturbance of automobile tire is essential. This study combines experimental and numerical simulation methods to investigate the spatial distribution and transport characteristics of road dust, considering road, vehicle characteristics and meteorological factors. The road dust cloud structure is characterized using dimensionless parameters, and the dust cloud volume is used to evaluate the pollution range in three-dimensional space due to tire disturbance near the vehicle. The results indicate that the total dust concentration is higher at the W/B = 0 position due to tire disturbance. Speed and load significantly impact the width of the road dust cloud, with maximum growth rates of 82 % and 47 % respectively within the ranges of speed and load variations. In addition, the diffusion of dust from open-pit mines has a significant impact on the environmental quality of Hebei Province and Tianjin City. The findings of this study provide theoretical guidance for the control and assessment of road dust pollution.

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汽车轮胎扰动下露天矿道路粉尘分布及输运特性的实验与数值模拟

为了制定有针对性的措施，了解汽车轮胎扰动下道路粉尘的分布和运输是必要的。本研究结合试验和数值模拟方法，综合考虑道路、车辆特性和气象因素，研究道路粉尘的空间分布和运输特征。采用无量纲参数表征道路尘云结构，利用尘云体积评价车辆附近轮胎扰动对路面的污染范围。结果表明：在W/B = 0位置，由于轮胎扰动，总粉尘浓度较高；速度和荷载对道路粉尘云宽度影响显著，在速度和荷载变化范围内，最大增长率分别为82%和47%。此外，露天矿粉尘的扩散对河北省和天津市的环境质量也有显著影响。研究结果为道路扬尘污染的控制与评价提供了理论指导。

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来源期刊

Journal of Wind Engineering and Industrial Aerodynamics 工程技术-工程：土木

CiteScore

8.90

自引率

22.90%

发文量

306

审稿时长

4.4 months

期刊介绍： The objective of the journal is to provide a means for the publication and interchange of information, on an international basis, on all those aspects of wind engineering that are included in the activities of the International Association for Wind Engineering http://www.iawe.org/. These are: social and economic impact of wind effects; wind characteristics and structure, local wind environments, wind loads and structural response, diffusion, pollutant dispersion and matter transport, wind effects on building heat loss and ventilation, wind effects on transport systems, aerodynamic aspects of wind energy generation, and codification of wind effects. Papers on these subjects describing full-scale measurements, wind-tunnel simulation studies, computational or theoretical methods are published, as well as papers dealing with the development of techniques and apparatus for wind engineering experiments.