期刊
MICROMACHINES
卷 11, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/mi11030240
关键词
acoustic streaming; boundary-driven streaming; cylindrical channel; limiting velocity method; acoustofluidics; microfluidics; micromanipulation
类别
资金
- National Natural Science Foundation of China [11804060]
- Youth Hundred-Talents Program of Guangdong University of Technology [220413195]
While acoustic streaming patterns in microfluidic channels with rectangular cross-sections have been widely shown in the literature, boundary-driven streaming fields in non-rectangular channels have not been well studied. In this paper, a two-dimensional numerical model was developed to simulate the boundary-driven streaming fields on cross-sections of cylindrical fluid channels. Firstly, the linear acoustic pressure fields at the resonant frequencies were solved from the Helmholtz equation. Subsequently, the outer boundary-driven streaming fields in the bulk of fluid were modelled while using Nyborg's limiting velocity method, of which the limiting velocity equations were extended to be applicable for cylindrical surfaces in this work. In particular, acoustic streaming fields in the primary (1, 0) mode were presented. The results are expected to be valuable to the study of basic physical aspects of microparticle acoustophoresis in microfluidic channels with circular cross-sections and the design of acoustofluidic devices for micromanipulation.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据