重力势能对倾斜通道中液滴润湿性及流动性影响的自由能理论研究

来源 :第十五届全国物理力学学术会议 | 被引量 : 0次 | 上传用户:wxm2000
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  表皮微流控芯片应用于人类可穿戴装备是未来新型人体健康监测技术的关键部件之一,因而研究微流体在表皮微流控芯片中的润湿行为具有重要的意义。本文采用自由能理论从几何和能量的角度研究了液滴在双表面超疏水通道中的润湿行为。区别于一般的自由能理论,在模型中我们把重力势能加入了体系的能量,通过能量最小求得系统在不同倾斜角下的稳定平衡状态,从而可以得到不同倾斜角下液滴的接触角。同时我们发现在一定的条件下,液滴在倾斜通道中既不是滚动,也不是滑动,而是通过液滴不断的变形实现在通道中的流动。
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