Aeroacoustic noise generation due to vortex reconnection

Hamid Daryan; Fazle Hussain; Jean-Pierre Hickey

doi:10.1103/physrevfluids.5.062702

Aeroacoustic noise generation due to vortex reconnection

Physical Review Fluids ◽

10.1103/physrevfluids.5.062702 ◽

2020 ◽

Vol 5 (6) ◽

Author(s):

Hamid Daryan ◽

Fazle Hussain ◽

Jean-Pierre Hickey

Keyword(s):

Noise Generation ◽

Aeroacoustic Noise ◽

Vortex Reconnection

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Synthesis of fricative sounds using an aeroacoustic noise generation model

The Journal of the Acoustical Society of America ◽

10.1121/1.421418 ◽

1998 ◽

Vol 103 (5) ◽

pp. 2775-2775 ◽

Cited By ~ 1

Author(s):

Daniel J. Sinder ◽

Michael H. Krane ◽

James L. Flanagan

Keyword(s):

Generation Model ◽

Noise Generation ◽

Aeroacoustic Noise

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CFD Prediction of Aeroacoustic Noise Generation in a HVAC duct

18th AIAA/CEAS Aeroacoustics Conference (33rd AIAA Aeroacoustics Conference) ◽

10.2514/6.2012-2068 ◽

2012 ◽

Cited By ~ 1

Author(s):

Elisabeth Gren ◽

Mark Farrall ◽

Fred Mendonça ◽

Karamjit Sandhu

Keyword(s):

Noise Generation ◽

Aeroacoustic Noise

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Numerical Analysis of Aeroacoustic Noise for High-Speed Face Milling Cutters in Three Dimensional Unsteady Flow Fields

Journal of Manufacturing Science and Engineering ◽

10.1115/1.4006772 ◽

2012 ◽

Vol 134 (4) ◽

Cited By ~ 2

Author(s):

Chunhui Ji ◽

Zhanqiang Liu

Keyword(s):

High Speed ◽

Reference Frames ◽

Acoustic Noise ◽

Environmental Concern ◽

Three Dimensional ◽

Vertical Plane ◽

Flow Fields ◽

Face Milling ◽

Noise Generation ◽

Aeroacoustic Noise

Aeroacoustic noise produced by high speed face milling cutters is a serious environmental concern. This paper develops a modeling approach to investigate the aeroacoustic noise generation and propagation by the idling face milling cutters. The approach consists of two parts: (1) an aerodynamic model for evaluating the flow fields based on the Navier–Stokes (N–S) equation and (2) an aeroacoustic model for predicting the acoustic noise by using the Ffowcs Williams and Hawkings (FW–H) equation. Both the steady mode with the multiple reference frames (MRF) model and the unsteady mode with the sliding mesh technique by introducing steady flow variables as its initial fields are simulated. The cutter gullet regions and the insert rake face regions are found to be the primary contributors in noise generation through spectral analysis of noise sources. The acoustic noise in face milling is significantly affected by the cutter diameter and the number of cutter teeth. The noise directivity is found in vertical plane, and the irregular tooth spacing can spread the maximum sound power at the rotating frequency to higher frequencies. In addition, experiments are conducted to measure the acoustic noise from two high speed milling cutters. It is found that the experimental results are generally in good agreement with the simulations.

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