Selective particle separation on centimeter scale using a dual frequency dynamic acoustic field

M.H. Kandemir, R.M. Wagterveld, D.R. Yntema, K.J. Keesman*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

This study investigated the application of dual-frequency type dynamic acoustic fields for size-selective particle separation on centimeter scale in a continuous flow. The 3D-printed X-shaped prototype has two inlets and two outlets. The dynamic acoustic field is generated by two transducers positioned under an angle of 60° and operating at slightly different frequencies. The acoustic reflections are eliminated by placing sound-absorbing material inside the prototype and the non-resonant operation is confirmed by the electrical admittance measurements. Numerical calculations suggested that pressure generated by each transducer does not need to have equal amplitude. Computer simulations and lab experiments were carried out for different frequency differences and flow rates. The results demonstrated the ability of dual-frequency dynamic acoustic fields for size-selective particle filtration on centimeter scale, with a total flow rate up to.1Lh-1.

Original languageEnglish
Article number106411
JournalUltrasonics
Volume114
DOIs
Publication statusE-pub ahead of print - 4 Mar 2021

Keywords

  • Acoustophoresis
  • Counter propagating waves
  • Dynamic acoustic fields
  • Selective particle separation

Fingerprint Dive into the research topics of 'Selective particle separation on centimeter scale using a dual frequency dynamic acoustic field'. Together they form a unique fingerprint.

Cite this