28th International Vienna Motor Symposium
New SimulationTool for Air Intake Noise under Consideration of the Air Flow
Authors
Dr. C. Feuchter, Dipl.-Ing. A. Enderich, MAHLE Filter Systems, Stuttgart
Year
2007
Print Info
Fortschritt-Berichte VDI, Reihe 12, Nr. 639
Summary
Acoustic problems of the engine intake system are conventionally treated using the finiteelement method (FEM) and the boundary element method (BEM) based on the standard wave equation. However this approach includes the assumption of wave propagation in a non-flowing medium, and in the case of the engine intake system this is not always realistic due to the relatively high flow velocities. For this reason a suitable mathematical theory was analyzed in the context of a fundamental research project. Furthermore the respective finite-element formulation for the wave propagation within a flowing medium was developed.
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