Nonlinear Numerical Simulation for Oscillating Pressure in Cavity and Passive Control Research
Prediction of oscillating pressure is a key technology for cavity research. Nonlinear Acoustic Solver (NLAS) is applied to analyze aeroacoustics recently. A nonlinear numerical solver is combined with the Reynolds-averaged Navier-Stokes (RANS) method. RANS is applied to solving the flow field around...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/4153287 |
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| _version_ | 1832552888720687104 |
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| author | Binqi Chen Yiding Wang |
| author_facet | Binqi Chen Yiding Wang |
| author_sort | Binqi Chen |
| collection | DOAJ |
| description | Prediction of oscillating pressure is a key technology for cavity research. Nonlinear Acoustic Solver (NLAS) is applied to analyze aeroacoustics recently. A nonlinear numerical solver is combined with the Reynolds-averaged Navier-Stokes (RANS) method. RANS is applied to solving the flow field around a cavity, and average solution of initial turbulent statistics is obtained which contains the basic characteristics of the average flow field and statistic description of turbulence fluctuation. The source of acoustic generation is reconstructed, and the spreading of oscillating pressure is simulated precisely. According to the comparison of the cavity noise calculation and experimental results under Mach numbers 0.6, 0.85, and 1.35, it indicates that NLAS is capable to predict oscillating pressure of cavity flow from subsonic to supersonic with acceptable deviation. On this basis, the contribution to oscillating pressure suppression made by passive control such as rectangular fence (RF) and square tooth spoiler (STS) is investigated. It is found that these two passive control methods can lessen the total noise. |
| format | Article |
| id | doaj-art-fb2f6481b7744072b8a1cec27ce8d44c |
| institution | Kabale University |
| issn | 1687-5966 1687-5974 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-fb2f6481b7744072b8a1cec27ce8d44c2025-02-03T05:57:37ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742019-01-01201910.1155/2019/41532874153287Nonlinear Numerical Simulation for Oscillating Pressure in Cavity and Passive Control ResearchBinqi Chen0Yiding Wang1School of Aeronautics and Astronautics, University of Electronic Science and Technology of China, Chengdu, ChinaSchool of Aeronautics and Astronautics, University of Electronic Science and Technology of China, Chengdu, ChinaPrediction of oscillating pressure is a key technology for cavity research. Nonlinear Acoustic Solver (NLAS) is applied to analyze aeroacoustics recently. A nonlinear numerical solver is combined with the Reynolds-averaged Navier-Stokes (RANS) method. RANS is applied to solving the flow field around a cavity, and average solution of initial turbulent statistics is obtained which contains the basic characteristics of the average flow field and statistic description of turbulence fluctuation. The source of acoustic generation is reconstructed, and the spreading of oscillating pressure is simulated precisely. According to the comparison of the cavity noise calculation and experimental results under Mach numbers 0.6, 0.85, and 1.35, it indicates that NLAS is capable to predict oscillating pressure of cavity flow from subsonic to supersonic with acceptable deviation. On this basis, the contribution to oscillating pressure suppression made by passive control such as rectangular fence (RF) and square tooth spoiler (STS) is investigated. It is found that these two passive control methods can lessen the total noise.http://dx.doi.org/10.1155/2019/4153287 |
| spellingShingle | Binqi Chen Yiding Wang Nonlinear Numerical Simulation for Oscillating Pressure in Cavity and Passive Control Research International Journal of Aerospace Engineering |
| title | Nonlinear Numerical Simulation for Oscillating Pressure in Cavity and Passive Control Research |
| title_full | Nonlinear Numerical Simulation for Oscillating Pressure in Cavity and Passive Control Research |
| title_fullStr | Nonlinear Numerical Simulation for Oscillating Pressure in Cavity and Passive Control Research |
| title_full_unstemmed | Nonlinear Numerical Simulation for Oscillating Pressure in Cavity and Passive Control Research |
| title_short | Nonlinear Numerical Simulation for Oscillating Pressure in Cavity and Passive Control Research |
| title_sort | nonlinear numerical simulation for oscillating pressure in cavity and passive control research |
| url | http://dx.doi.org/10.1155/2019/4153287 |
| work_keys_str_mv | AT binqichen nonlinearnumericalsimulationforoscillatingpressureincavityandpassivecontrolresearch AT yidingwang nonlinearnumericalsimulationforoscillatingpressureincavityandpassivecontrolresearch |