SYSNOISE prediction of sound pressure level on an automotive side-view mirror, based on flow-induced sources predicted in FLUENT; the link to SYSNOISE complements the native capability for noise prediction in FLUENT 6.1

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Computational aeroacoustics is of growing interest to analysts and designers, who would like to control or reduce flow-induced noise. Fluent customers who use the popular acoustics package SYSNOISE from LMS International will now be able to integrate their flow predictions from FLUENT with acoustic solutions computed in SYSNOISE. The integration allows FLUENT to be used for high-accuracy prediction of the flow-generated noise sources, with a coupling to SYSNOISE for prediction of how these sources are propagated and how they interact with other acoustic phenomena.

The integration allows the time-varying surface pressure, predicted in FLUENT, to be imported to SYSNOISE. Within SYSNOISE, the flow solution data is processed into the frequency domain and becomes part of the acoustic prediction performed in the SYSNOISE model. Mechanical excitations and propagation of sound waves can also be included. Typical applications might include noise induced by flow separation, flow impingement, or from rotating fans or blowers.

The interoperability with FLUENT appears in SYSNOISE Rev 5.6, and will be available from LMS International.

For more.info www.lmsintl.com

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