As sound emissions, such as engine noise or tire rolling noise, continuously decrease in automobiles, other sound generators become more prominent. In some of these sound generators, which also include turbochargers, flow-induced noise is the primary sound source. Using a turbocharger from the BorgWarner company as an application example, a pragmatic modeling methodology based on acoustic analogies is presented for predicting the sound field.
Derivation of aeroacoustic sources from flow field
Use of CFD General Notation System (cgns) and Boundary Element Method (BEM)
Early knowledge of simulated sound emission
Potential for reduced development times and costs
Analysis of various acoustic effects and influence on sound radiation
