ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Axisymmetric wave propagation in gas shear flow confined by a rigid-walled pipeline |
Chen Yong (陈勇)a, Huang Yi-Yong (黄奕勇)a, Chen Xiao-Qian (陈小前)a, Bai Yu-Zhu (白玉铸)a, Tan Xiao-Dong (谭晓栋)b |
a College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China; b Department of Electronic Technology, Officer's College of CAPF, Chengdu 610213, China |
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Abstract The axisymmetric acoustic wave propagating in a perfect gas with a shear pipeline flow confined by a circular rigid wall is investigated. The governing equations of non-isentropic and isentropic acoustic assumptions are mathematically deduced while the constraint of Zwikker and Kosten is relaxed. An iterative method based on the Fourier-Bessel theory is proposed to semi-analytically solve the proposed models. A comparison of numerical results with literature contributions validates the present contribution. Meanwhile, the features of some high-order transverse modes, which cannot be analyzed based on the Zwikker and Kosten theory, are analyzed.
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Received: 04 July 2014
Revised: 16 October 2014
Accepted manuscript online:
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PACS:
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43.28.Kt
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(Aerothermoacoustics and combustion acoustics)
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43.28.Ra
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(Generation of sound by fluid flow, aerodynamic sound and turbulence)
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43.28.Py
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(Interaction of fluid motion and sound, Doppler effect, and sound in flow ducts)
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43.28.Bj
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(Mechanisms affecting sound propagation in air, sound speed in the air)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11404405, 91216201, 51205403, and 11302253). |
Corresponding Authors:
Chen Yong
E-mail: literature.chen@gmail.com
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Cite this article:
Chen Yong (陈勇), Huang Yi-Yong (黄奕勇), Chen Xiao-Qian (陈小前), Bai Yu-Zhu (白玉铸), Tan Xiao-Dong (谭晓栋) Axisymmetric wave propagation in gas shear flow confined by a rigid-walled pipeline 2015 Chin. Phys. B 24 044301
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