Integrating Fluid-Acoustic Unidimensional Models in the Time and Frequency Domains 931296
In order to describe simultaneously the thermo-fluid dynamics and the acoustics of an Internal Combustion engine, a mathematical model and a computer program has been developed which integrate the Method of the Characteristics with the Acoustic. Transfer Matrix Method. The former method is currently used to model the fluid dynamics of Internal Combustion engines, whilst the latter allows the description of the acoustical behaviour of the intake and exhaust systems.
The theory presented in the article integrates the two approaches, allowing the fluid-acoustics of the global system engine-silencers to be described, taking into account the mutual interactions.
Preliminary investigations on a simplified system, constituted of a constant section duct, have demonstrated the consistency and validity of the model.
Citation: Angori, S., Mascellini, R., and Schellino, G., "Integrating Fluid-Acoustic Unidimensional Models in the Time and Frequency Domains," SAE Technical Paper 931296, 1993, https://doi.org/10.4271/931296. Download Citation
Author(s):
Silvio P. Angori, Rosa M. Mascellini, Giancarlo Schellino
Affiliated:
Centro Ricerche Fiat
Pages: 9
Event:
Noise & Vibration Conference & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Proceedings of the 1993 Noise and Vibration Conference-P-264
Related Topics:
Mathematical models
Computer simulation
Exhaust systems
Combustion and combustion processes
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