Semi-Empirical Model for Flow Noise Prediction on Intake and Exhaust Systems IBS Ingenieurbuero für Schall- und Schwingungstechnik GmbH, Ludwigshafen, Germany

Format:

Conference/Event

Author/Creator:

Kunz, Frieder H., author.

Conference Name:

Noise & Vibration Conference & Exposition (1999-05-17 : Traverse City, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1999

Summary:

Flow noise from exhaust systems is a noise source that contributes to drive-by noise measurements. A prediction tool that allows us to choose the right duct dimensions would be very helpful. Therefore we integrated a flow noise module in a given linear acoustic prediction software.A flow noise source is modelized as an acoustic source. The source spectra is a function of the Strouhal number. The noise level depends on flow speed. A flow noise measurement with cold flow gives a set of source describing parameters. Using these parameters and the flow noise source model, a prediction of flow noise for mufflers is possible

Notes:

Vendor supplied data

Publisher Number:

1999-01-1654

Access Restriction:

Restricted for use by site license