| Citation: | YANG Yuming, ZHOU Li, SHI Jingwei, et al. Numerical study on the flow and sound characteristics of split three-stream nozzle[J]. Journal of Aerospace Power, 2024, 39（12）：20230078 doi: 10.13224/j.cnki.jasp.20230078
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The influences of the three-stream introduction and the tertiary bypass ratio on the flow and noise characteristics of the three-stream nozzle were studied by the numerical simulation method. The results showed that the three-stream introduction increased the length of the bypass potential core, shortened the axial distance of the direct mixing between the end of the primary potential core and the free stream, and reduced the peak value of the turbulent mixing between them by about 2.63%. However, due to the increase of the shear layer thickness, the low-speed three-stream had limited noise reduction effect in all directions. The increase of the tertiary bypass ratio was easy to achieve, at the cost of reducing fuel consumption, and it can increase the engine thrust and reduce the broadband noise of the exhaust system. The increase of tertiary bypass ratio to 2.52 weakened not only the turbulent mixing intensity at the end of the primary potential core, but also the mixing intensity of the strong shear layer between the three-stream and the free stream. Compared with the design condition, the mixing intensity at the end of the primary potential core decreased by 8.57%, and the overall sound pressure level decreased in all directions, with a peak value of about 2.37 dB.
| [1] |
JOHN M,NICOLE N,JACK S,et al. Advanced concept studies for supersonic commercial transports entering service in the 2018 to 2020 period: Phase Ⅰ final report[R]. NASA/CR-2013-217820,2013.
|
| [2] |
芳. 二十一世纪的航空技术(3): 高速民用运输机[J]. 国际航空,1994(3): 32-33. Fang. Aeronautical technologies for twenty-first century (3): high-speed civil transport[J]. International Aviation,1994(3): 32-33. (in Chinese
Fang. Aeronautical technologies for twenty-first century (3): high-speed civil transport[J]. International Aviation, 1994(3): 32-33. (in Chinese)
|
| [3] |
HENDERSON B. Aeroacoustics of three-stream jets[R]. AIAA 2012-2159,2012.
|
| [4] |
SIMMONS S P,HENDERSON B S,KHAVARAN A. Flow field and acoustic predictions for three-stream jets[R]. AIAA 2014-3741,2014.
|
| [5] |
HENDERSON B S,WERNET M. Characterization of three-stream jet flow fields[R]. AIAA 2016-1636,2016.
|
| [6] |
MARCIE A. Investigation of noise sources in three-stream jets using turbulence characteristics[D]. Blacksburg,US: University of California,2017.
|
| [7] |
PAPAMOSCHOU D,PHONG V,XIONG Juntao,et al. Quiet nozzle concepts for three-stream jets[R]. AIAA 2016-0523,2016.
|
| [8] |
PAPAMOSCHOU D,PHONG V C. Perceived noise assessment of offset three-stream nozzles for low noise supersonic aircraft[R]. AIAA 2018-1740,2018.
|
| [9] |
RUSCHER C J,GOGINENI S P. Characterization of three-stream jets[R]. AIAA 2018-1738,2018.
|
| [10] |
ADAM A,PAPAMOSCHOU D,XIONG Juntao,et al. The very near pressure field of three-stream jets[R]. AIAA 2018-1739,2018.
|
| [11] |
ADAM A,PAPAMOSCHOU D,XIONG Juntao,et al. Vorticity dynamics and flow statistics near the edge of high-speed multi-stream jets[R]. AIAA 2019-1303,2019.
|
| [12] |
BRIDGES J E. Aeroacoustic validation of installed low noise propulsion for NASA’s N+2 supersonic airliner[R]. AIAA 2018-0009,2018.
|
| [13] |
BRIDGES J E. Noise measurements of a low-noise top-mounted propulsion installation for a supersonic airliner[R]. AIAA 2019-0253,2019.
|
| [14] |
PHONG V C,PAPAMOSCHOU D. Investigation of isolated and installed three-stream jets from offset nozzles[R]. AIAA 2017-0005,2017.
|
| [15] |
HENDERSON B S,HUFF D L. The aeroacoustics of offset three-stream jets for future commercial supersonic aircraft[R]. AIAA 2016-2992,2016.
|
| [16] |
HUFF D L,HENDERSON B S,BERTON J J,et al. Perceived noise analysis for offset jets applied to commercial supersonic aircraft[R]. AIAA 2016-1635,2016.
|
| [17] |
孙啸林. 低可探测S弯喷管设计及性能评估方法研究[D]. 西安: 西北工业大学,2018. SUN Xiaolin. Investigation on design method and performance estimation of low observable S-shaped nozzle[D]. Xi’an: Northwestern Polytechnical University,2018. (in Chinese
SUN Xiaolin. Investigation on design method and performance estimation of low observable S-shaped nozzle[D]. Xi’an: Northwestern Polytechnical University, 2018. (in Chinese)
|
| [18] |
GOULOS I,STANKOWSKI T,OTTER J,et al. Aerodynamic design of separate-jet exhausts for future civil aero-engines: Part Ⅰ parametric geometry definition and computational fluid dynamics approach[J]. Journal of Engineering for Gas Turbines and Power,2016,138(8): 081201. doi: 10.1115/1.4032649
|
| [19] |
LEIB S J,GEORGIADIS N J,YODER D A. Reynolds-averaged navier-stokes solutions and noise predictions for three-stream jets[R]. AIAA 2016-1882,2016.
|
| [20] |
XIONG Juntao,LIU Feng,PAPAMOSCHOU D. Large eddy simulation of three-stream jets[R]. AIAA 2018-1737,2018.
|
| [21] |
SHUR M L,SPALART P R,STRELETS M K. Noise prediction for increasingly complex jets Part I methods and tests[J]. International Journal of Aeroacoustics,2005,4(3): 213-245.
|
| [22] |
TAM C K W. Computational aeroacoustics-Issues and methods[J]. AIAA Journal,1995,33(10): 1788-1796. doi: 10.2514/3.12728
|
| [23] |
杜功焕. 声学基础[M]. 2版. 南京: 南京大学出版社,2001. DU Gonghuan. Acoustics foundation[M]. 2nd ed. Nanjing: Nanjing University Press,2001. (in Chinese
DU Gonghuan. Acoustics foundation[M]. 2nd ed. Nanjing: Nanjing University Press, 2001. (in Chinese)
|
| [24] |
LYRINTZIS A S,CODERONI M. Overview of the use of large-eddy simulations in jet aeroacoustics[J]. AIAA Journal,2020,58(4): 1620-1638. doi: 10.2514/1.J058498
|
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