Anti-Hydroplaning Analysis of Tire Micro-Pattern Grooves

Research Area: Volume 9,Issue 1,Jan. 2020 Year: 2020
Type of Publication: Article Keywords: Anti-Hydroplaning, Tread Pattern, Microstructure, Computational Fluid Dynamics, Drag Reduction Mechanism
Authors:
  • Yunfen Sun
  • Congzhen Liu
  • Yongqiang Li
  • Yang Yuan
  • Mengyu Xie
  • Chengwei Xu
Journal: IJEIR Volume: 9
Number: 1 Pages: 1-10
Month: January
ISSN: 2277-5668
Abstract:
The anti-hydroplaning performance of tires is mainly achieved by improving the drainage capacity of the tread pattern. The drag reduction and drainage increase of the pattern grooves are the keys to improve the hydroplaning performance of the tire. Improving drag reduction performance of tires without increasing pattern groove volume has become the focus of the research. Taking the tire single-pitch groove of 185/60R15 as the research object, and referring to the bionic design method, three types of microstructure grooves were arranged at the bottom of the tread pattern. At different water flow velocities, the computational fluid dynamics method was used to analyze the drag reduction and anti-hydroplaning performance of the grooves. The drag reduction effects of the three microstructure grooves are compared, and their drag reduction mechanisms are analyzed. The results show that three microstructures can reduce drag by increasing the thickness of the boundary layer, reducing wall shear stress and dynamic water pressure without increasing the groove volume. The first groove has a better drag reduction than others.

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