相关实验视频

Updated: Jul 24, 2025

High Speed Droplet-based Delivery System for Passive Pumping in Microfluidic Devices

High Speed Droplet-based Delivery System for Passive Pumping in Microfluidic Devices

Published on: September 2, 2009

动态和半静态滴滴穿透网格

Yakun Zong¹, Alexander Oron², Haihu Liu³

¹Department of Mechanical Engineering, Guangdong Technion─Israel Institute of Technology, Shantou, Guangdong 515063, China.

Langmuir : the ACS journal of surfaces and colloids

|July 7, 2023

概括

通过网状网的液体透取决于孔径大小和透模式. 表面湿度对动态滴滴冲击透的影响最小,但影响准静态透停止压力.

科学领域:

流体动力学流体动力学
材料科学材料科学材料科学
表面科学是一门学科.

背景情况:

了解液体穿透多孔材料对于各种应用至关重要,包括过和保护装备.
孔径大小,表面湿透性和透动力学等网状性质显著影响液体运输.

研究的目的:

实验性地研究孔径大小,表面湿透性和透模式对通过网格的液体透特性的影响.
在动态 (滴滴撞击) 和准静态 (水定压力) 条件下,确定控制液体透的值速度和质量的关键因素.

主要方法:

通过超疏水性,疏水性,超疏水性和疏水性网格透水的实验研究.
利用滴水冲击进行动态透研究,利用水静压进行准静态透分析.
改变网孔半径和值,以评估它们对透特性的影响.

主要成果:

在动态滴水冲击下,表面湿度对透值速度和液体质量的影响微不足道.
动态透的值滴滴速度主要由滴滴的全球和局部动态压力决定.
对于准静态透,表面湿度和孔径并没有改变透值压力,但由于液体扩散和毛细血管效应,影响了停止压力.

结论:

通过网格的动态液体透在很大程度上独立于表面的湿透性,由冲击压力驱动.
准静态液体透受到表面湿透性和孔径的影响,特别是在确定由于毛细管压力变化而停止透时.

更多相关视频

High Throughput Single-cell and Multiple-cell Micro-encapsulation

High Throughput Single-cell and Multiple-cell Micro-encapsulation

Published on: June 15, 2012

Visualization of High Speed Liquid Jet Impaction on a Moving Surface

Visualization of High Speed Liquid Jet Impaction on a Moving Surface

Published on: April 17, 2015

相关概念视频

Capillarity in Fluid

Capillarity in Fluid

Capillarity describes the movement of liquid in small spaces without external forces acting on it. The capillarity is driven by surface tension and adhesive interactions between the liquid and surrounding solid surfaces. This effect is often seen in narrow tubes, porous materials, and fine particles.
Surface tension is crucial to capillarity. It results from cohesive forces between liquid molecules at the liquid-air boundary, forming a skin that resists external forces. When the capillary tube...