Axisymmetric wave propagation in gas shear flow confined by a rigid-walled pipeline

The axisymmetric acoustic wave propagating in a perfect gas with a shear pipeline flow confined by a circular rigid wail 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...

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Published inChinese physics B Vol. 24; no. 4; pp. 246 - 256
Main Author 陈勇 黄奕勇 陈小前 白玉铸 谭晓栋
Format Journal Article
LanguageEnglish
Published 01.04.2015
Subjects
Acoustics
Axisymmetric
Fourier-Bessel transformations
Gas pipelines
Mathematical analysis
Mathematical models
Natural gas
Wave propagation
刚性
声波传播
承压
数值结果
方程推导
理想气体
管道
轴对称流
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Summary:The axisymmetric acoustic wave propagating in a perfect gas with a shear pipeline flow confined by a circular rigid wail 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-anaiyticaily 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 anaiyzed
Bibliography:11-5639/O4
wave propagation, shear flow, thermoviscous gas, Fourier-Bessel theory
The axisymmetric acoustic wave propagating in a perfect gas with a shear pipeline flow confined by a circular rigid wail 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-anaiyticaily 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 anaiyzed
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/24/4/044301