Next Article in Journal
Core-Shell Beads Made by Composite Liquid Marble Technology as A Versatile Microreactor for Polymerase Chain Reaction
Next Article in Special Issue
Droplet Microfluidics for the ex Vivo Expansion of Human Primary Multiple Myeloma Cells
Previous Article in Journal
Recent Developments of Flexible and Stretchable Electrochemical Biosensors
Article

Numerical Simulation of Boundary-Driven Acoustic Streaming in Microfluidic Channels with Circular Cross-Sections

by 1,2,*, 1,2 and 1,2
1
State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, Guangdong University of Technology, Guangzhou 510006, China
2
Guangzhou Key Laboratory of Non-traditional Manufacturing Technology and Equipment, Guangdong University of Technology, Guangzhou 510006, China
*
Author to whom correspondence should be addressed.
Micromachines 2020, 11(3), 240; https://doi.org/10.3390/mi11030240
Received: 29 December 2019 / Revised: 6 February 2020 / Accepted: 10 February 2020 / Published: 26 February 2020
(This article belongs to the Special Issue Micromanipulation in Microfluidics)
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. View Full-Text
Keywords: acoustic streaming; boundary-driven streaming; cylindrical channel; limiting velocity method; acoustofluidics; microfluidics; micromanipulation acoustic streaming; boundary-driven streaming; cylindrical channel; limiting velocity method; acoustofluidics; microfluidics; micromanipulation
Show Figures

Figure 1

MDPI and ACS Style

Lei, J.; Cheng, F.; Li, K. Numerical Simulation of Boundary-Driven Acoustic Streaming in Microfluidic Channels with Circular Cross-Sections. Micromachines 2020, 11, 240. https://doi.org/10.3390/mi11030240

AMA Style

Lei J, Cheng F, Li K. Numerical Simulation of Boundary-Driven Acoustic Streaming in Microfluidic Channels with Circular Cross-Sections. Micromachines. 2020; 11(3):240. https://doi.org/10.3390/mi11030240

Chicago/Turabian Style

Lei, Junjun, Feng Cheng, and Kemin Li. 2020. "Numerical Simulation of Boundary-Driven Acoustic Streaming in Microfluidic Channels with Circular Cross-Sections" Micromachines 11, no. 3: 240. https://doi.org/10.3390/mi11030240

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop