Measurement of particle dynamics in a coherent acoustic field

Measurement of particle dynamics in a coherent acoustic field

Setayeshgar, A.
Lipsett, M.G.
Koch, C.R.
Nobes, D.S.

2013-07-01

A variety of forces can be used to separate fine particles from water in industrial processes. A coherent standing acoustic field can apply a pressure difference across a small particle such that the particle is forced to nodes or anti-nodes in the field depending of particle/liquid properties. The motion of an individual particle is the result of the balance of forces on the particle which can include particle-to-particle interactions. This study develops a method to measure individual particle motion using a particle tracking velocimetry (PTV) approach. This method is used to investigate the effects of particle loading in an acoustic field and is used to test the current theory which only addresses single particle motion. The paper focuses on the application and validation of a PTV-based experiential measurement technique used to determine the forces applied on individual particles.

coherent acoustic field, macro particle separation, particle clustering, particle tracking velocimetry

http://resolver.tudelft.nl/uuid:ef706a25-2368-4540-86fe-6ed13522ee80

Conference proceedings

conference paper

(c) 2013 Setayeshgar, A.; Lipsett, M.G.; Koch, C.R.; Nobes, D.S.