在不同灵活通道中的毛细管灌
Mouad Boudina1, Gwynn J Elfring1
1Department of Mechanical Engineering, University of British Columbia, Vancouver V6T 1Z4, British Columbia, Canada.
Langmuir : the ACS journal of surfaces and colloids
|August 18, 2023
概括
弹性板吸收液体显示复杂的流动动力学. 弹性扭转了刚性板的原理,与平行配置相比,分散的柔性板可以增强液体吸入.
科学领域:
- 流体动力学 流体动力学
- 软物质物理学 软物质物理学
- 材料科学是一种材料科学.
背景情况:
- 在各种自然和工程系统中,使表面之间的液体浸泡变湿至关重要.
- 在流体流动下,柔性材料的行为与刚性材料的行为有很大不同.
研究的目的:
- 为了研究板块灵活性和初始几何学对液体浸泡动态的影响.
- 为了确定在狭窄的几何形状中增强或阻碍工艺的条件.
主要方法:
- 解决滑方程与细体变形理论相结合.
- 分析流体流动,毛细血管力和弹性变形之间的相互作用.
- 研究平行和倾斜的柔性板材配置.
主要成果:
- 在平行柔性板块中,初始变形加速了流动,但随后的收缩减缓了流动,可能导致在临界度以下的崩.
- 倾斜的柔性板材避免崩,不同的几何形状增强了毛细血管的推进和速.
- 弹性扭转了刚性板块的趋势;分离的柔性板块比平行板块更快地吸收.
结论:
- 板材的灵活性和初始倾斜角度是控制在狭窄几何形状中沉浸的关键参数.
- 与平行配置相比,分离的柔性板提供了一个增强液体运输的机制.
- 存在一个最佳的倾斜角度,以最大限度地提高柔性板材系统中的速.
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