| 轮胎外轮廓对气动阻力影响的研究 |
| Study on Influence of Tire Outer Contour on Aerodynamic Resistance |
| 投稿时间：2020-06-12 修订日期：2020-06-12 |
| DOI：10.12136/j.issn.1000-890X.2020.12.0894 |
| 中文关键词: 轮胎 外轮廓 气动阻力 气流分离 湍流动能 |
| 英文关键词: tire outer contour aerodynamic resistance air flow separation turbulent kinetic energy |
| 基金项目:国家自然科学基金资助项目（52072156，51675240）；江苏省青年基金项目（KB20160528）；江苏省“六大人才高峰”资助项目（JXQC-011） |
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| 中文摘要: |
| 针对185/65R14乘用车轮胎，采用流体动力学计算方法，研究轮胎外轮廓对轮胎气动阻力的影响。结果表明：轮胎外轮廓对轮胎气动阻力因数影响明显，轮胎气动阻力因数的差异最大可达14.51%；通过改进影响气流分离的轮胎外轮廓，可以减小气流尾涡以降低轮胎气动阻力。本研究结果可为低气动阻力轮胎结构设计奠定基础。 |
| 英文摘要: |
| 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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