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- Title
Natural frequency of a gas bubble in a tube: experimental and simulation results.
- Authors
Jang, Neo W; Gracewski, Sheryl M; Abrahamsen, Ben; Buttaccio, Travis; Halm, Robert; Dalecki, Diane
- Abstract
Use of ultrasonically excited microbubbles within blood vessels has been proposed for a variety of clinical applications. In this paper, an axisymmetric coupled boundary element and finite element code and experiments have been used to investigate the effects of a surrounding tube on a bubble's response to acoustic excitation. A balloon model allowed measurement of spherical gas bubble response. Resonance frequencies match one-dimensional cylindrical model predictions for a bubble well within a rigid tube but deviate for a bubble near the tube end. Simulations also predict bubble translation along the tube axis and aspherical oscillations at higher amplitudes.
- Publication
The Journal of the Acoustical Society of America, 2009, Vol 126, Issue 1, pEL34
- ISSN
1520-8524
- Publication type
Journal Article
- DOI
10.1121/1.3152266