Faculty Collaboration Database

Flow patterns and transport in Rayleigh surface acoustic wave streaming: combined finite element method and raytracing numerics versus experiments. IEEE Trans Ultrason Ferroelectr Freq Control 2008 Oct;55(10):2298-305

Date

11/07/2008

Pubmed ID

18986877

DOI

10.1109/TUFFC.928

Scopus ID

2-s2.0-54049149815 (requires institutional sign-in at Scopus site)   62 Citations

Abstract

This work presents an approach for determining the streaming patterns that are generated by Rayleigh surface acoustic waves in arbitrary 3-D geometries by finite element method (FEM) simulations. An efficient raytracing algorithm is applied on the acoustic subproblem to avoid the unbearable memory demands and computational time of a conventional FEM acoustics simulation in 3-D. The acoustic streaming interaction is modeled by a body force term in the Stokes equation. In comparisons between experiments and simulated flow patterns, we demonstrate the quality of the proposed technique.

Author List

Frommelt T, Gogel D, Kostur M, Talkner P, Hänggi P, Wixforth A

MESH terms used to index this publication - Major topics in bold

Acoustics
Algorithms
Computer Simulation
Finite Element Analysis
Microfluidics
Models, Theoretical
Sound Spectrography
Surface Properties