On the Numerical Optimization of Acoustic and Brake Engine Performance University of Modena and Reggio Emilia

Format:

Book

Conference/Event

Author/Creator:

Mattarelli, E., author.

Conference Name:

SAE World Congress & Exhibition (2009-04-20 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2009

Summary:

One dimensional CFD codes are standard tools for engine development, in particular for the optimization of intake and exhaust systems. However, the accurate prediction of both engine brake performance and acoustic outputs is not that trivial. A quite critical issue is the modeling of complex engine components, such as air cleaners, plenums, exhaust junctions, silencers, et cetera A trade-off is required in order to balance the accuracy of the acoustic analysis and the computational cost, particularly when DOE techniques have to be applied.In this paper a methodology for an integrated acoustic and performance analysis of a high performance SI engine is described. An engine simulation model has been built by using a commercial software, and it has been validated against experiments, finding a good agreement. It is remarked that the measurements of both acoustic and engine performance parameters are taken by using standard facilities and equipment, no anechoic test bench is required.Finally, the calibrated model has been applied to assess the influence of the crankshaft geometry of a V8 engine on both performance and sound

Notes:

Vendor supplied data

Publisher Number:

2009-01-0304

Access Restriction:

Restricted for use by site license