Acoustic Streaming in a Microchannel with Inhomogeneous Fluids

Application ID: 121501


In acoustofluidics, acoustics is used to manipulate particles and fluids in microfluidic devices. This model demonstrates the phenomena of the inhomogeneous acoustic body force and how it can move a fluid with an inhomogeneous density due to a solute.

The model is of a 2D rectangular cross section of a long rectangular microchannel and inspired by Ref 1. Where it is demonstrated that an acoustic field can move a high density fluid from the bottom to the center of a microfluidic channel. In the model Transport of Diluted Species is used together with user defined material parameters (Ref 1) that depend on the concentration of the diluted species.

Ref 1: J. T. Karlsen et. al "Acoustic Force Density Acting on Inhomogeneous Fluids in Acoustic Fields", PRL 117, 114504 (2016).

This model example illustrates applications of this type that would nominally be built using the following products: