防化侦检微流控系统中液体性质对液滴生成的影响

摘要

利用数值计算的方法,对防化侦检微流控系统中微管内液体性质对液滴生成过程的影响进行研究.结果表明液体表面张力主要影响液滴形成时间和主液滴体积的大小;液体粘度系数对液滴形成的过程有特殊影响,粘度的取值满足一定范围时,液滴的形成时间、液滴长度和体积都会出现一个极值.%Using numerical method, this paper studies the effect of liquid properties on the droplet formation process of liquid properties of microtubules in microfluidic system for chemical detection.Results show that the liquid surface tension mainly affects the droplet formation time and main droplet volume size,and that liquid viscosity coefficient has special influence on the droplet formation process when viscosity value satisfies a certain range, and that droplet formation time,droplet length and volume will all reach an extremum.