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Turbulent acoustic streaming excited by resonant gas oscillation with periodic shock waves in a closed tube
| Title: | Turbulent acoustic streaming excited by resonant gas oscillation with periodic shock waves in a closed tube |
| Authors: | Yano, Takeru Browse this author |
| Issue Date: | Jul-1999 |
| Publisher: | American Institute of Physics (The Acoustical Society of America) |
| Journal Title: | The Journal of the Acoustical Society of America |
| Volume: | 106 |
| Issue: | 1 |
| Start Page: | L7 |
| End Page: | L12 |
| Publisher DOI: | 10.1121/1.427023 |
| Abstract: | Resonant gas oscillations with periodic shock waves in a closed tube are studied by executing large-scale computations of the compressible 2-D Navier–Stokes equations with a finite-difference method. In a quasisteady state of oscillation, acoustic streaming (mean mass flow) of large Rs is excited, where Rs is the streaming Reynolds number based on a characteristic streaming velocity, the tube length, and the kinematic viscosity. When Rs=560, relatively strong vortices are localized near the tube wall. The resulting streaming pattern is almost stationary but quite different from that of the Rayleigh streaming. The streaming of Rs=6200 involves unsteady vortices in a region near the center of the tube. Turbulent streaming appears in the result of Rs=56000, where vortices of various scales are irregularly generated throughout the tube. ©1999 Acoustical Society of America. |
| Rights: | Copyright 1999, Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/14905 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 矢野 猛
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