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Acoustic improvement of stator–rotor interaction with nonuniform trailing edge blowing
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Wang, Wenjie and Thomas, P. J. (Peter J.) (2018) Acoustic improvement of stator–rotor interaction with nonuniform trailing edge blowing. Applied Sciences, 8 (6). 994. doi:10.3390/app8060994
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Official URL: https://doi.org/10.3390/app8060994
Abstract
The results of unsteady-flow simulations and experiments are discussed to investigate active noise-reduction effects on the stator–rotor interaction in a single-stage low-speed compressor with nonuniform trailing edge blowing. It is found that for the investigated type of stator–rotor interaction noise, nonuniform trailing edge blowing has beneficial noise-reducing effects. The overall aim is to demonstrate that nonuniform trailing edge blowing can compensate momentum loss and reduce the axial thrust on rotor blades. The results illustrate how nonuniform trailing edge blowing influences the sound pressure level of the blade-passing frequencies and results in active noise reduction effects. The study was conducted using a trailing edge blowing system, a four-hole dynamic flow-field measurement system, and phase lock technology. The results obtained show that nonuniform trailing edge blowing leads to substantial noise-reduction effects, lowering sound levels by more than 10 dB with about 5‰ of inlet mass flow.
| Item Type: | Journal Article | ||||||
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| Subjects: | T Technology > TJ Mechanical engineering and machinery | ||||||
| Divisions: | Faculty of Science > Engineering | ||||||
| Library of Congress Subject Headings (LCSH): | Compressors -- Blades -- Mathematical models, Air flow -- Simulation methods | ||||||
| Journal or Publication Title: | Applied Sciences | ||||||
| Publisher: | MDPI | ||||||
| ISSN: | 2076-3417 | ||||||
| Official Date: | 19 June 2018 | ||||||
| Dates: |
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| Date of first compliant deposit: | 19 June 2018 | ||||||
| Volume: | 8 | ||||||
| Number: | 6 | ||||||
| Article Number: | 994 | ||||||
| DOI: | 10.3390/app8060994 | ||||||
| Status: | Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
| Access rights to Published version: | Open Access | ||||||
| RIOXX Funder/Project Grant: |
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