Particle Image Velocimetry (PIV) measurements in a water film, application to a tire rolling through a puddle

D Cabut (1) , M. Michard (1) , V. Todoroff (2) , J Lemaître (2) , C. Hermange (3, 2) , Y. Le Chenadec (4) , S Simoens (1)

1 LMFA - Laboratoire de Mecanique des Fluides et d'Acoustique
2 Centre de Technologies Michelin Ladoux
3 LHEEA - Laboratoire de recherche en Hydrodynamique, Énergétique et Environnement Atmosphérique
4 Manufacture Française des Pneumatiques Michelin

A measurement method based on Particle Image Velocimetry with refraction of the laser sheet at a win-dow/water interface is proposed for the measurement of the velocity field of a water flow formed by a tire moving inside a water puddle. This study focuses of the feasibility and repeatability of this optical measurement method. The characterization of the optical properties of the measurement technique defines the integration effect in height of the measurement method. The analysis of the overall features of the flow is focused on two main zones in front and around the tire. The flow inside the first zone is defined by a characteristic velocity of the water displaced in an area located in front of the tire ; in the second zone a characteristic velocity representative of the flow in the vicinity of the shoulder of the tire is also defined. Correlations of both characteristic velocities with the car speed and water film height are established. New and worn tires were tested in this work.

Domaines: Sciences de l'ingénieur [physics]; Physique [physics]

D Cabut, M. Michard, V. Todoroff, J Lemaître, C. Hermange, et al.. Particle Image Velocimetry (PIV) measurements in a water film, application to a tire rolling through a puddle. 24ème Congrès Français de Mécanique CFM 2019, Aug 2019, Brest, France. ⟨10.1051/meca/2020052⟩. ⟨hal-02388865⟩