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The Simulation of Air Induction Noise Using 1D-3D Coupling
Technical Paper
2011-01-0500
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Compartment noise has gained significant importance to meet customer expectation. One of the sources of noise is air intake noise. Intake noise is produced by both opening and closing of the inlet valve. This makes source noise critical to the development of air induction system. The new approach has been thought for noise analysis of Air Induction System (AIS) to identify source noise using 1D-3D coupling. It is very difficult to simulate engine and air induction system in Computational Fluid Dynamics (CFD) due to complexities in geometry.
The objective of the present study is to predict the pulsed noise and flow noise using 1D-3D coupling. The engine with 1D code and AIS with 3D CFD code is simulated. Engine pulsation from GT-Power is provided as an input boundary condition to ANSYS Fluent. GT-Power exchanges boundary values to 3D computation domain at each CFD time step through special connections. The CFD code is run with implicit discretisation scheme and SAS turbulence model. Transient 3D flow equations are solved and sound signals at receiver locations are computed using source surfaces. Sound pressure signals recorded at receiver location is processed using Fast Fourier Transform (FFT) to get data in frequency and amplitude domain.
The objective of this study is to develop a simulation process to identify source noise and correlate with experiments.
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Authors
Citation
Ghodake, D. and Haque, Z., "The Simulation of Air Induction Noise Using 1D-3D Coupling," SAE Technical Paper 2011-01-0500, 2011, https://doi.org/10.4271/2011-01-0500.Also In
References
- Flow field simulation analysis and acoustic performance improvement of automotive intake system Lirong, Lu Xiaoxiong, Jin Chang, Jin 2009 IEEE
- “SAS Turbulence Modeling of Technical Flows” Menter, F R Egorov, Y ANSYS Germany GmbH Staudenfeldweg 12, D-83624 Otterfing Germany
- ANSYS Fluent manual
- GT Power: Modeling Applications
- Turbulence Models Based on The Length-Scale Equation Menter, Florian R. Egorov, Yury Fourth International Symposium on Turbulent Shear Flow Phenomena Williamsburg 2005