Noise Reduction in Subsonic Jets Using Chevron Nozzles

被引:0
|
作者
Gupta, Suyash Kumar [1 ]
Vinod, Narayanan [1 ]
机构
[1] Indian Inst Technol, Mech Engn, Gandhinagar 382355, Gujarat, India
来源
RECENT ASIAN RESEARCH ON THERMAL AND FLUID SCIENCES, AJWTF7 2018 | 2020年
关键词
Aero-acoustics; Chevrons; Jet noise; Large eddy simulation;
D O I
10.1007/978-981-15-1892-8_47
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
The exhaust of the jet engines used in commercial (subsonic) aircrafts produce a lot of noise known as jet noise. This noise has adverse effects on the population living nearby the airports. However, the noise levels are above the permissible limit and thus need more attention. This paper reviews some of the techniques for noise reduction and mainly focuses on the use of chevron nozzle in reducing the jet noise. Large eddy simulations are performed for a simple nozzle and chevron nozzle with triangular wedges at the rear circumference of the nozzle with same boundary conditions. Acoustic data is collected at different receiver locations to understand the effect of chevrons in jet noise reduction. The result of the simulations shows that chevrons are good attenuators of jet noise.
引用
收藏
页码:615 / 625
页数:11
相关论文
共 50 条
  • [21] Jet noise sources for chevron nozzles in under-expanded condition
    Jawahar, Hasan Kamliya
    Meloni, Stefano
    Camussi, Roberto
    INTERNATIONAL JOURNAL OF AEROACOUSTICS, 2022,
  • [22] Nozzle noise reduction using multi-tube nozzles
    Berg, FP
    PROCEEDINGS OF NOISE-CON 96 - THE 1996 NATIONAL CONFERENCE ON NOISE CONTROL ENGINEERING, VOLS 1 AND 2, 1996, : 325 - 330
  • [23] Improved noise predictions from subsonic jets at Mach 0.75 using URANS calculations
    Tide, P. S.
    Babu, V.
    PROGRESS IN COMPUTATIONAL FLUID DYNAMICS, 2009, 9 (08): : 460 - 474
  • [24] Instability waves and low-frequency noise radiation in the subsonic chevron jet
    Lingke Ran
    Chuangchao Ye
    Zhenhua Wan
    Haihua Yang
    Dejun Sun
    Acta Mechanica Sinica, 2018, 34 (03) : 421 - 430
  • [25] Instability waves and low-frequency noise radiation in the subsonic chevron jet
    Lingke Ran
    Chuangchao Ye
    Zhenhua Wan
    Haihua Yang
    Dejun Sun
    Acta Mechanica Sinica, 2018, 34 : 421 - 430
  • [26] Instability waves and low-frequency noise radiation in the subsonic chevron jet
    Ran, Lingke
    Ye, Chuangchao
    Wan, Zhenhua
    Yang, Haihua
    Sun, Dejun
    ACTA MECHANICA SINICA, 2018, 34 (03) : 421 - 430
  • [27] Application of RANS-based method to predict acoustic noise of chevron nozzles
    Engel, Rafael C.
    Silva, Carlos R. I.
    Deschamps, Cesar J.
    APPLIED ACOUSTICS, 2014, 79 : 153 - 163
  • [28] JET DENSITY EXPONENT ISSUE FOR NOISE OF HEATED SUBSONIC JETS
    MANI, R
    JOURNAL OF FLUID MECHANICS, 1974, 64 (JUL8) : 611 - 622
  • [29] Acoustic Sources and Far-Field Noise of Chevron and Round Jets
    Mohan, N. K. Depuru
    Dowling, A. P.
    Karabasov, S. A.
    Xia, H.
    Graham, O.
    Hynes, T. P.
    Tucker, P. G.
    AIAA JOURNAL, 2015, 53 (09) : 2421 - 2436
  • [30] Compositional and entropy indirect noise generated in subsonic non-isentropic nozzles
    De Domenico, Francesca
    Rolland, Erwan O.
    Rodrigues, Jocelino
    Magri, Luca
    Hochgreb, Simone
    JOURNAL OF FLUID MECHANICS, 2021, 910