Acoustic intensity measurement in a narrow duct by a two-sensor method |
| |
Authors: | Biwa Tetsushi Tashiro Yusuke Nomura Hiroshi Ueda Yuki Yazaki Taichi |
| |
Affiliation: | Department of Mechanical Systems and Design, Tohoku University, Sendai, Japan. |
| |
Abstract: | The use of two pressure sensors [Fusco et al., J. Acoust. Soc. Am. 91, 2229 (1992)] makes it possible to determine the acoustic intensity of a gas column in a duct, but the application of this method was limited to wide ducts. In this letter, the formulation of the method is modified to include narrow ducts where the duct radius is as small as the viscous boundary layer thickness of the gas. The validity of this method is shown by comparison with the direct measurements of the pressure and velocity. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|