| Study on Influence of Tire Outer Contour on Aerodynamic Resistance |
| Received:June 12, 2020 Revised:June 12, 2020 |
| DOI：10.12136/j.issn.1000-890X.2020.12.0894 |
| Key Words: tire；outer contour；aerodynamic resistance；air flow separation；turbulent kinetic energy |
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| Abstract: |
| For the 185/65R14 passenger car radial tires，the influence of the tire outer contour on the aerodynamic resistance was studied by using fluid dynamics calculation method. The results showed that the tire outer contour had a significant influence on the aerodynamic resistance coefficient，and the difference of the aerodynamic resistance coefficient could be up to 14. 51%. By improving the tire outer contour which affected the air flow separation，the flow vortex was reduced to lower the aerodynamic resistance. The research results could lay the foundation for the structural design of low aerodynamic resistance tire. |
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