Characterization of Scattering Distribution of Tire Wear Particles in Heavy Container Trucks
A coupled fluid-solid-particle aerodynamics model was developed to investigate the spa-tial and concentration distribution of tire wear particles emitted by heavy container trucks under var-ying 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 in-creases 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.Lon-gitudinally,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 characteris-tics and concentration patterns of tire wear particles,providing a scientific reference for addressing en-vironmental concerns stemming from wear particle emissions by heavy container trucks and for devi-sing effective mitigation strategies.
heavy truckaerodynamicstire wear particletiredispersion
万方数据
维普
