Experimental and numerical study of high-intensity sound in the cavity between rotator and stator of high- pressure compressor

IF 17.7 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-02-26 DOI:10.1177/1475472x241226935

Fengtong Zhao, Cui Bo, Mingsui Yang, Jiang Mx, Sha Yd, Xiaopeng Guo

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Abstract

An experiment is conducted in a multistage high-pressure compressor to investigate noise and rotor blade vibration. When vibration with high amplitude occurs in the rotor blade, high-intensity sound occurs within the compressor. The amplitude of noise inside the compressor varies with the amplitude of blade vibration, and the variation laws are consistent. Therefore, an annular disk cavity model, the simplified cavity between the rotator and stator of a high-pressure compressor, is built to study the high-intensity sound in the compressor by numerical simulation. The motion processes of the vortex structure inside the cavity are captured. The acoustic mode of the annular disk cavity model is excited at Ma 0.2, at the same time the sound pressure in the cavity is characterized with obvious a form of circumferential second order. The internal sound pressure gradually increases along the radial direction. Meanwhile, an annular disk cavity structure is established for experimental study. The characteristics of the acoustic mode of the annular disk cavity structure obtained in the simulation and experiment are consistent.

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高压压缩机转子和定子之间空腔中高强度声音的实验和数值研究

在多级高压压缩机中进行了一项实验，以研究噪声和转子叶片振动。当转子叶片发生高振幅振动时，压缩机内部会发出高强度的声音。压缩机内部噪声的振幅随叶片振动振幅的变化而变化，其变化规律是一致的。因此，建立了一个环形盘腔模型，即高压压缩机转子和定子之间的简化腔体，通过数值模拟研究压缩机内的高强度声。模型捕捉了腔内涡旋结构的运动过程。环形盘腔模型的声模在 Ma 0.2 时被激发，同时腔内声压具有明显的圆周二阶形式。内部声压沿径向逐渐增大。同时，建立了环形盘腔结构进行实验研究。模拟和实验得出的环形盘腔结构的声模特征是一致的。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.