음향 압축기 설계를 위한 축대칭 공명튜브 내부음장의 수치해석 및 특성연구Numerical Analysis of Nonlinear Acoustic Characteristics in Axisymmetric Resonant Tubes for Sonic Compressors

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A numerical investigation on nonlinear oscillations of gas in an axisymmetric resonant tube is presented. When a tube is oscillated at a resonant frequency, acoustic variables such as density, velocity, and pressure undergo very large perturbation, often described as nonlinear oscillation. In order to analyze these phenomena, axisymmetric 2-D nonlinear governing equations have been derived and solved numerically. Numerical simulations were accomplished for cylindrical, conical, and 1/2 cosine-shape tubes, which have same volume and length. For conical and 1/2 cosine-shape tubes, very large variation of pressures can be induced without shock formation except the cylindrical tube. In addition, the results well agree to those of 1-D simple model analysis.
Publisher
한국소음진동공학회
Issue Date
2001
Language
KOR
Citation

한국소음진동공학회 2001 춘계학술대회, pp.1009 - 1014

URI
http://hdl.handle.net/10203/137309
Appears in Collection
ME-Conference Papers(학술회의논문)
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