A methodology for capturing tire wear particles: Computational particle fluid dynamics modelling and experimental verification.

An approach that forces TWPs to enter and retain in a tunnel to prevent their release into the environment was proposed and investigated by a novel solid-gas two-phase aerodynamic car-wheel-TWP model and verified by a newly-designed equipment. Capture efficiency were investigated by changing the entrance and exit positions of the tunnels. The results show that the maximum capture ratio exceeds 50% and there is good agreement on the capture ratios obtained from the simulations and the experiments. The capture efficiency is mostly determined by the pressure difference between the tunnel ends. The maximum capture ratio appears at 60 km/h. The TWPs captured by the rear tunnel exceeds 60% in total capture amount. Health-concerned TWPs with sizes smaller than 10 μm may be the main source that are captured by the tunnels. This aerodynamic model and capturing approach can provide a methodology and guidelines for relieving the pollution induced by TWPs. [Display omitted] • An approach that prevents tire wear particles from releasing into the environment was proposed. • The approach was verified by the conducted simulation and the physical experiment. • The capture efficiency is mostly determined by the pressure difference between the two ends of the tunnel. • Health-concerned tire wear particles smaller than 10 μm is the main capture source. [ABSTRACT FROM AUTHOR]