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

被引：2
|
作者：
Chen Yong [1 ]
Huang Yi-Yong [1 ]
Chen Xiao-Qian [1 ]
Bai Yu-Zhu [1 ]
Tan Xiao-Dong [2 ]
机构：
[1] Natl Univ Def Technol, Coll Aerosp Sci & Engn, Changsha 410073, Hunan, Peoples R China
[2] Officers Coll CAPF, Dept Elect Technol, Chengdu 610213, Peoples R China
来源：
CHINESE PHYSICS B | 2015年 / 24卷 / 04期
基金：
中国国家自然科学基金;
关键词：
wave propagation; shear flow; thermoviscous gas; Fourier-Bessel theory; VISCOUS-FLUID; SOUND-WAVES; MEAN FLOW; DISPERSION-EQUATION; NARROW PIPES; FORMULATION; DUCT; TRANSMISSION; MOTION; TUBES;
D O I：
10.1088/1674-1056/24/4/044301
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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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页数：11
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