滚动轮胎表面对流换热的萘升华模拟研究 |
Experimental analogy for convective heat transfer on rolling tire surface by naphthalene sublimation |
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DOI: |
中文关键词: 对流换热 热质比拟 萘升华 滚动轮胎 |
英文关键词: convectional heat transfer heat mass analogy naphthalene sublimation rolling tire |
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中文摘要: |
根据热质比拟的基本原理,采用萘升华技术,在风洞中利用直线运动的旋转圆盘模拟研究了滚动轮胎表面的对流换热系数。当风速为14 m·s-1时,轮胎表面对流换热系数与汽车行驶速度呈线性关系,随着汽车行驶速度的增大,轮胎表面对流换热系数也增大,其经验式为h=5.299+1.243 8v。 |
英文摘要: |
Based on the principle of heat-mass analogy,the convective heat transfer coefficient on rolling tire surface was simulatively investigated with a linearly moving rotary disc in a wind tunnel by using naphthalene sublimation technology.The results showed that the convective heat transfer coefficient on rolling tire surface was directly proportional to the vehicle speed at the wind speed of 14 m·s-1,and its empirical formula was as follows:h=5.299+1.243 8v. |
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