Based on optical measurements of the flow field behind a turning tire by PIV (particle image velocimetry), which gave detailed understanding of the boundary layer behavior, the flow in this region can be designed in that tire wear particles can be captured up to a high percentage. The main part of the flow design is a injection and suction device (TSS – tire suction system), which separates the boundary layer of the wheel and the street leading the particles toward a filter system. The efficiency of TSS is proven by investigation of the flow by optical measurement technique (PIV).

• There are effective possibilities for flow field design behind turning tires capturing tire wear particles: function of TSS
• The boundary layer behind turning tires is fixed to tire and street and so it is difficult to separate: sophistcated flow field design is needed
• The low pressure area behind the turning tire makes it difficult to just remove particles by applying suction: sophistcated flow field design is needed
• Modern optical measurement technique PIV (particle image velocimetry) is applied to prove the applicability of TSS
• Only by modern optical flow measurement technique (PIV) can the aerodynamics behind the turning tire be determined, since there are so many influences