Solid-fluid interaction in a pillar-based phononic crystal

M. F.Mohd Razip Wee, Kim S. Siow, Ahmad Rifqi Md Zain, Mahmoud Addouche, Abdelkrim Khelif

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, we investigate the wave dispersion of two dimensional pillar-based phononic crystal surrounded in liquid medium. An unit cell structure with reduced pillar height (hp/a)=0.5 and reduced radius (rp/a)=0.3 is simulated using Finite Element Method. The geometrical parameter is chosen to demonstrate a local resonance mechanism that allow the confinement of elastic energy at the interface between the solid and the fluid. In order to identify the energy distribution, we represent the eigenmode at high symmetry (point X) in the first Brillouin zone. The decreasing trend of frequency is also boosted with the increase of pillar height. From the total displacement, the energy is mostly located inside the pillar and only a small value of displacement is present in the substrate. The results from this study could be useful for microfluidic and lab on chip application. We believe that the integration of pillar based phononic crystal with microfluidic could become a powerful tool in the sensor and actuator application for chemical and biological application.

Original languageEnglish
Title of host publication2016 IEEE International Conference on Semiconductor Electronics, ICSE 2016 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages47-49
Number of pages3
ISBN (Electronic)9781509023837
DOIs
Publication statusPublished - 21 Sept 2016
Externally publishedYes
Event12th IEEE International Conference on Semiconductor Electronics, ICSE 2016 - Bangsar, Kuala Lumpur, Malaysia
Duration: 17 Aug 201619 Aug 2016

Publication series

NameIEEE International Conference on Semiconductor Electronics, Proceedings, ICSE
Volume2016-September

Conference

Conference12th IEEE International Conference on Semiconductor Electronics, ICSE 2016
Country/TerritoryMalaysia
CityBangsar, Kuala Lumpur
Period17/08/1619/08/16

Keywords

  • bandgap
  • local resonance
  • phononic crystal
  • surface acoustic wave

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