Experimental study of the buzz phenomenon in a supersonic inlet with and without the bleed

IF 5 1区工程技术 Q1 ENGINEERING, AEROSPACE

Aerospace Science and Technology Pub Date : 2025-05-24 DOI:10.1016/j.ast.2025.110346

Javad Sepahi-Younsi

引用次数: 0

Abstract

The primary aim of this study is to investigate the buzz phenomenon and its onset mechanism in a supersonic air inlet by analyzing wind tunnel test data. The inlet under examination is an axisymmetric and mixed-compression inlet designed for a Mach number of 2. To examine the effects of boundary layer suction on changing the mechanism and characteristics of the buzz phenomenon, applying the slot and porous suctions has also been investigated. The results show that the inlet without the bleed has no little buzz, and the buzz starts as the big buzz according to Dailey's criterion. With the application of the boundary layer suction method, the buzz oscillations are not only significantly delayed, but the buzz type also changes to the little buzz according to the Ferri criterion. A comparison of slot and porous bleeds shows that the slot bleed performs better in both delaying the buzz phenomenon and reducing the amplitude of oscillations.

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超声速进气道带和不带排气嗡嗡声现象的实验研究

本文通过对风洞试验数据的分析，探讨了超声速进气道内的嗡嗡声现象及其发生机理。所研究的进气道为轴对称混合压缩进气道，设计马赫数为2。为了研究边界层吸力对改变嗡嗡现象的机理和特性的影响，还研究了狭缝和多孔吸力的作用。结果表明：无排气的进气道没有小的嗡嗡声，根据Dailey准则，嗡嗡声以大嗡嗡声开始。边界层吸力法的应用不仅显著延缓了振声振荡，而且根据Ferri判据，振声类型也转变为小振声。通过与多孔排液的比较，表明槽排液在延缓嗡嗡现象和减小振荡幅度方面都有较好的效果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Aerospace Science and Technology 工程技术-工程：宇航

CiteScore

10.30

自引率

28.60%

发文量

654

审稿时长

54 days

期刊介绍： Aerospace Science and Technology publishes articles of outstanding scientific quality. Each article is reviewed by two referees. The journal welcomes papers from a wide range of countries. This journal publishes original papers, review articles and short communications related to all fields of aerospace research, fundamental and applied, potential applications of which are clearly related to: • The design and the manufacture of aircraft, helicopters, missiles, launchers and satellites • The control of their environment • The study of various systems they are involved in, as supports or as targets. Authors are invited to submit papers on new advances in the following topics to aerospace applications: • Fluid dynamics • Energetics and propulsion • Materials and structures • Flight mechanics • Navigation, guidance and control • Acoustics • Optics • Electromagnetism and radar • Signal and image processing • Information processing • Data fusion • Decision aid • Human behaviour • Robotics and intelligent systems • Complex system engineering. Etc.