Acoustic streaming induced by anti-symmetrical flexural modes near a wedge tip

Author

Wang, W.-C. ; Yang, C.-H. ; Yang, A.-S.

Author_Institution

Inst. of Manuf. Technol., Nat. Taipei Univ. of Technol., Taipei, Taiwan

fYear

2010

fDate

11-14 Oct. 2010

Firstpage

1047

Lastpage

1049

Abstract

Acoustic streaming (AS) is a steady fluid flow driven by the absorption of high amplitude ultrasonic vibrations due to the nonlinear effect. With potential applications in micro-pumping, the AS-related behaviors remain as interesting topics to the acoustic community. Anti-symmetric flexural (ASF) modes are wedge waves with their particle motion anti-symmetric about the apex mid-plane. With the energy tightly confined near the wedge-tip, ASF mode has relatively high acoustic amplitude which suggest it´s as a good candidate for the investigation of AS. In this study, the AS behaviors induced by ASF modes are investigated by computational fluid dynamics (CFD). The ASF induced three-dimensional AS flow field are presented through the CFD analysis.

Keywords

acoustic streaming; computational fluid dynamics; flow; ultrasonic absorption; ultrasonics; vibrations; CFD; absorption; antisymmetrical flexural modes; computational fluid dynamics; micropumping; nonlinear effect; steady fluid flow; three-dimensional acoustic streaming flow field; ultrasonic vibrations; Acoustic waves; Computational fluid dynamics; Finite element methods; Numerical models; Solid modeling;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2010 IEEE

Conference_Location

San Diego, CA

ISSN

1948-5719

Print_ISBN

978-1-4577-0382-9

Type

conf

DOI

10.1109/ULTSYM.2010.5935857

Filename

5935857