相关实验视频

Updated: Jul 30, 2026

Microfluidic Mixers for Studying Protein Folding

Microfluidic Mixers for Studying Protein Folding

Published on: April 10, 2012

通过刚性波形设计和参数优化来研究电解氧微混合器的混合性能

Ali Khoshnod¹, Reza Shahsavandi¹, Khashayar Hosseinzadeh²

¹Department of Mechanical Engineering, K. N. Toosi University of Technology, Tehran, Iran.

Scientific reports

|May 14, 2025

概括

优化带有波形的电解微混合器几何学显著改善了流体的混合. 几何调整和交流参数将混合效率提高了10%以上.

科学领域:

流体动力学流体动力学
微流体学微流体学
电动运动学电动运动学

背景情况:

活性微混合器利用交流电 (AC) 来产生状结构,以提高混合效果.
电微混合器提供了一种专门的方法来混合微尺度设备中的流体.

研究的目的:

为了优化带有分离器的电解氧微混合器的几何参数.
在几何优化后,研究交流参数对混合效率的影响.

主要方法:

利用塔古奇方法和响应表面方法 (RSM) 来进行几何优化.
使用COMSOL软件进行过渡的2D有限元素方法 (FEM) 模拟.
在不同的输入速度,频率,电压和交流相位滞后下评估的混合指数.

主要成果:

优化的几何参数在混合指数中得到了10.58%的改善.
实行严格的分辨器使混合指数增加了8%.
增加电压从1到3V提高了27%的混合; [公式:参见文本]相位延迟实现了99.37%的最大混合指数.

结论:

带有波形的电微混合器的几何优化对于增强混合有效.
交流参数,特别是电压和相位延迟,显著影响混合性能.
优化的设计显示了高效的微流体混合应用的巨大潜力.

关键词:

电奥斯摩斯式微混合机电奥斯摩斯式微混合机混合质量的质量响应表面方法响应表面方法刚性阻隔器刚性阻隔器塔古奇的方法塔古奇的方法

更多相关视频

Analyzing Mixing Inhomogeneity in a Microfluidic Device by Microscale Schlieren Technique

Analyzing Mixing Inhomogeneity in a Microfluidic Device by Microscale Schlieren Technique

Published on: June 12, 2015

One-Step Approach to Fabricating Polydimethylsiloxane Microfluidic Channels of Different Geometric Sections by Sequential Wet Etching Processes

One-Step Approach to Fabricating Polydimethylsiloxane Microfluidic Channels of Different Geometric Sections by Sequential Wet Etching Processes

Published on: September 13, 2018

相关概念视频

Bioreactor Controls-II

Bioreactor Controls-II

In aerobic fermentations, oxygen is vital for microbial growth and metabolite production. Since air comprises only about 20% oxygen and the gas is poorly soluble in water—just 9 ppm at 20°C—supplying sufficient oxygen becomes a critical challenge, especially in high-demand processes like yeast growth or citric acid production. Even a fully saturated broth may offer only a few seconds of oxygen availability.To address this, sterile or scrubbed air is introduced into the fermentor via a sparger...