| 粗糙表面形貌对湿润性的影响 |
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| 引用本文： | 陈云富,陈永平,张程宾,施明恒.粗糙表面形貌对湿润性的影响[J].工程热物理学报,2011(7). |
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| 作者姓名： | 陈云富 陈永平 张程宾 施明恒 |
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| 作者单位： | 东南大学能源与环境学院; |
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| 基金项目： | 国家自然科学基金项目(No.50806012) |
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| 摘 要： | 采用自仿射分形对粗糙表面形貌进行了定量描述。基于分形粗糙表面形貌,建立了粗糙表面润湿性的理论模型并进行了数值计算,分析讨论了均方根粗糙度和表面分形维数对接触角的影响。研究结果表明,均方根粗糙度对接触角的影响较大,而粗糙表面的分形维数对润湿性的影响则并不明显。
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| 关 键 词： | 粗糙度 湿润性 分形 接触角 |
Influence of Rough Surface Topogarphy on Wettability |
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| CHEN Yun-Fu CHEN Yong-Ping ZHANG Cheng-Bin SHI Ming-Heng.Influence of Rough Surface Topogarphy on Wettability[J].Journal of Engineering Thermophysics,2011(7). |
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| Authors: | CHEN Yun-Fu CHEN Yong-Ping ZHANG Cheng-Bin SHI Ming-Heng |
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| Institution: | CHEN Yun-Fu CHEN Yong-Ping ZHANG Cheng-Bin SHI Ming-Heng (School of Energy and Environment,Southeast University Nanjing 210096,China) |
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| Abstract: | Topogarphy of rough surface is quantitatively characterized by self-affine fractal.A model for rough surface wettability is developed and numerically analyzed based on the fractal characterization.Effects of root mean square roughness height and surface fractal dimension on contact angle are both discussed and analyzed.It is indicated that the root mean square roughness height has a significant role on contact angle,while the effect of fractal dimension is not obvious. |
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| Keywords: | roughness wettability fractal contact angle |
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