China Mechanical Engineering ›› 2024, Vol. 35 ›› Issue (12): 2251-2258.DOI: 10.3969/j.issn.1004-132X.2024.12.018

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Characterization of Scattering Distribution of Tire Wear Particles in Heavy Container Trucks

JIANG Weiqi1;SHI Heng1;HUANG Haibo1;PENG Wei2;REN Rui1;DU Longfei1;XU Yiwei1   

  1. 1.School of Mechanical Engineering and Mechanics,Ningbo University,Ningbo,Zhejiang,315211
    2.College of Automotive Engineering,Tongji University,Shanghai,200021

  • Online:2024-12-25 Published:2025-01-17

重型集装箱卡车轮胎磨损颗粒物散射的分布特性

蒋维琦1;施恒1;黄海波1;彭为2;任睿1;杜龙飞1;许一伟1   

  1. 1.宁波大学机械工程与力学学院,宁波,315211
    2.同济大学汽车工程学院,上海,200021

  • 作者简介:蒋维琦,男,1998年生,硕士研究生。研究方向为滚动体摩擦磨损。E-mail:2111081124@nbu.edu.cn。
  • 基金资助:
    浙江省自然科学基金(LTGS24E050001);国家自然科学基金(51975300);中国环境科学研究院国家环境保护机动车污染控制与模拟重点实验室开放基金(VECS2022K07);中央级公益性科研院所基本科研业务费专项(2022YSKY-05)

Abstract: A coupled fluid-solid-particle aerodynamics model was developed to investigate the spatial and concentration distribution of tire wear particles emitted by heavy container trucks under varying velocities. The results indicate that the dispersion of tire wear particles from heavy truck tires is markedly affected by the trailing vortex. Laterally, the dispersion width behind the vehicle initially increases before stabilizing, with a maximum width of 3.0 meters observed. The particle concentration follows a similar trend, peaking at 0.34 mg/m3 at a lateral distance of 1.0 meter from the vehicle. Longitudinally, the height of particle dispersion rises initially and then levels off, with the highest point reaching approximately 4.8 meters at 4.0 meters behind the vehicle. The concentration pattern mirrors this, with a peak concentration of 0.33 mg/m3 at a height of 0.5 meters, located 1.0 meter behind the vehicle along the longitudinal axis. This research offers significant insights into the spatial characteristics and concentration patterns of tire wear particles, providing a scientific reference for addressing environmental concerns stemming from wear particle emissions by heavy container trucks and for devising effective mitigation strategies.

Key words: heavy truck, aerodynamics, tire wear particle, tire, dispersion

摘要: 建立了流固颗粒相单向耦合的重型集装箱卡车空气动力学模型,研究了不同车速下轮胎磨损颗粒物的空间和浓度分布。研究结果表明:重型卡车轮胎磨损颗粒物扩散受车尾涡流影响较大;在横向上,扩散宽度在车后呈现先增大后稳定的趋势,最宽可以达到3.0 m,颗粒物浓度呈现先升高后降低的趋势,在横向1.0 m位置达到最高值0.34 mg/m3;在纵向上,磨损颗粒物扩散高度先升高后保持高度,在车后方4.0 m位置最高可以达到4.8 m左右,颗粒物浓度呈现先升高后降低的趋势,浓度最高可达到0.33 mg/m3,出现在车后方1.0 m截面0.5 m高度位置。获得的轮胎磨损颗粒物的空间扩散分布特性和浓度分布规律可为重型集装箱卡车颗粒物造成的环境问题研究及其捕集策略的制定提供科学参考。

关键词: 重型卡车, 空气动力学, 轮胎磨损颗粒物, 轮胎, 分布特性

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