CAJ | 학술논문

为了研究分支型微通道内水－油两相流动，采用水平集法进行数值模拟．微通道几何参数和流体在壁面滑移程度的变化，对液滴尺寸产生不同影响。随着入口角的增大，液滴长度呈二次变化；离散相通道越宽，液滴长度受入口角影响程度越大；在入口角是60°的通道内，随着滑移尺寸的增加，液滴长度增长程度逐渐减缓，通道内流体受壁面滑移作用的厚度约占主通道的56．3％．对微流体混合系统的优化设计提供了参考．
위료연구분지형미통도내수－유량상류동，채용수평집법진행수치모의．미통도궤하삼수화류체재벽면활이정도적변화，대액적척촌산생불동영향。수착입구각적증대，액적장도정이차변화；리산상통도월관，액적장도수입구각영향정도월대；재입구각시60°적통도내，수착활이척촌적증가，액적장도증장정도축점감완，통도내류체수벽면활이작용적후도약점주통도적56．3％．대미류체혼합계통적우화설계제공료삼고．
The level set method was used for numerical simulation in order to investigate the water-oil two-phase flow in a bifurcation micro-channel .The droplet size was influenced by changing the geometrical parameters of the micro-channel and the slip the degree of fluid on the walls .The droplet lengths were quadratically changed with increasing inlet angles .The influence of the inlet angle on the droplet length became greater with the wider dispersed channel . The increase of the droplet length became slow with the increase in the slip size in the channel with the inlet angle of 60° ,and the thickness of the slip effect on fluid accounted for 56 .3% of the main-channel width .This study can be used as guidance to the design of the micro-fluid mixing systems .