Acoustic Trap in Glass Capillary with Bias Flow
Application ID: 113701
A 3D model of an acoustic trap in a glass capillary with a bias flow through the capillary. The acoustics is actuated by an oscillating electric potential across a piezoelectric transducer, inducing mechanical vibrations in the solid, and an acoustic pressure field in the fluid. The heat generated by the piezoelectric transducer is modeled, it leads to a temperature gradient in the glass capillary causing gradients in the fluid properties. The bias flow contributes with convective heat transport which makes the temperature field asymmetric. The acoustic field and the gradients in the fluid properties induce thermoacoustic streaming. The streaming structure also depends on the bias flow due to the heat convection. The trajectories, of particles in the trap, are plotted in postprocessing using the streamline plot functionality. It is investigated what particle size the acoustic trap can hold/pin in the presence of the bias flow.
This model example illustrates applications of this type that would nominally be built using the following products:
however, additional products may be required to completely define and model it. Furthermore, this example may also be defined and modeled using components from the following product combinations:
- COMSOL Multiphysics® and
- Acoustics Module and
- either the Battery Design Module, CFD Module, Chemical Reaction Engineering Module, Corrosion Module, Electrochemistry Module, Electrodeposition Module, Fuel Cell & Electrolyzer Module, Microfluidics Module, Polymer Flow Module, Porous Media Flow Module, or Subsurface Flow Module
The combination of COMSOL® products required to model your application depends on several factors and may include boundary conditions, material properties, physics interfaces, and part libraries. Particular functionality may be common to several products. To determine the right combination of products for your modeling needs, review the Specification Chart and make use of a free evaluation license. The COMSOL Sales and Support teams are available for answering any questions you may have regarding this.