Unstructured grid finite volume analysis for acoustic and pulsed wave propagation characteristics in exhaust silencer systems
- Hanyang Univ., Seoul (Korea, Republic of). Dept. of Mechanical Engineering
- IAE, Seoul (Korea, Republic of). Automotive Technology Lab.
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.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 417942
- Journal Information:
- Numerical Heat Transfer. Part A, Applications, Vol. 30, Issue 5; Other Information: PBD: Oct 1996
- Country of Publication:
- United States
- Language:
- English
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