Abstract
This article provides a critical review of computational techniques for flow-noise prediction and the underlying theories. Hybrid approaches, in which the turbulent noise source field is computed and/or modeled separately from the far-field calculation, are afforded particular attention. Numerical methods and modern flow simulation techniques are discussed in terms of their suitability and accuracy for flow-noise calculations. Other topics highlighted include some important formulation and computational issues in the application of aeroacoustic theories, generalized acoustic analogies with better accounts of flow-sound interaction, and recent computational investigations of noise-control strategies. The review ends with an analysis of major challenges and key areas for improvement in order to advance the state of the art of computational aeroacoustics.
Original language | English (US) |
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Pages (from-to) | 483-512 |
Number of pages | 30 |
Journal | Annual Review of Fluid Mechanics |
Volume | 38 |
DOIs | |
State | Published - 2006 |
Keywords
- Acoustic analogy
- Aeroacoustics
- Computational methods
- Flow noise
- Noise control
- Turbulence simulation
ASJC Scopus subject areas
- Condensed Matter Physics