Design and simulation of silicon-based ultrasonic nozzles for production of monodispersed droplets

C. H. Cheng, N. Wang, Y. L. Song, S. C. Tsai, Y. F. Chou, C. T. Lee, C. S. Tsai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

This paper reports the design and simulation of Si-based ultrasonic nozzles (or atomizers) that consist of multiple Fourier horns at ultrasonic frequency ranging from 0.57 to 2.75 MHz. Such high frequency ultrasonic nozzles should produce monodispersed droplets (or drops) 2 to 6 um in diameter, which are ideal to efficiently target medications to different locations within the respiratory system depending on the site of disease. 3-D simulations on vibration mode shape and impedance of the nozzles using a commercial finite element method (FEM) program, ANSYS, yield resonant frequencies of pure longitudinal vibration in good agreement with the measured values. The mode shape simulation also shows that at the resonant frequency the longitudinal vibration amplitude gain at the nozzle tip for 3-horn nozzle is 8, four times that for a single-horn nozzle.

Original languageEnglish
Title of host publicationProceedings of the 2nd Frontiers in Biomedical Devices Conference 2007
Pages11-12
Number of pages2
DOIs
Publication statusPublished - 2007 Nov 23
Event2nd Frontiers in Biomedical Devices Conference 2007 - Irvine, CA, United States
Duration: 2007 Jun 72007 Jun 8

Publication series

NameProceedings of the 2nd Frontiers in Biomedical Devices Conference 2007

Other

Other2nd Frontiers in Biomedical Devices Conference 2007
CountryUnited States
CityIrvine, CA
Period07-06-0707-06-08

All Science Journal Classification (ASJC) codes

  • Biomedical Engineering

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