Title :
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
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;
Conference_Titel :
Ultrasonics Symposium (IUS), 2010 IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4577-0382-9
DOI :
10.1109/ULTSYM.2010.5935857
