UNSTRUCTURED GRID FINITE VOLUME ANALYSIS FOR ACOUSTIC AND PULSED WAVE PROPAGATION CHARACTERISTICS IN EXHAUST SILENCER SYSTEMS
作者:
Jong-Tae Kim,
Yong-Mo Kim,
Joo-Sung Maeng,
Myung-Seok Lyu,
Young-Gon Ku,
期刊:
Numerical Heat Transfer, Part A: Applications
(Taylor Available online 1996)
卷期:
Volume 30,
issue 5
页码: 439-457
ISSN:1040-7782
年代: 1996
DOI:10.1080/10407789608913850
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The unstructured grid finite volume method has been applied to predict the linear and nonlinear attenuation characteristics of the expansion chamber type silencer system. In order to achieve grid flexibility and a solution adaptation for geometrically complex flow regions associated with the actual silencers, the unstructured mesh algorithm in context with the node-centered finite volume method has been employed. The validation cases for the linear and nonlinear wave propagation characteristics include the acoustic field of the concentric expansion chamber and the axisymmetric blast flow field with the open end. Effects of the chamber geometry on the nonlinear wave propagation characteristics are discussed in detail.
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