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Fluctuating Pressure Characteristics in the Mixing Region of a Perturbed and Unperturbed Round Free Jet

机译：扰动和无扰圆形自由射流混合区域的脉动压力特性

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摘要

Theoretically, near-field pressure measurements in a turbulent flow can be used to predict far-field acoustic radiation. The basis of this study is the experimental verification of methods for obtaining the necessary data. Pressure intensity, spectra and cross-correlation data are obtained in three types of jet flows. The characteristic scale of pressure fluctuations is compared to the equivalent velocity scales. Consideration is given to errors associated with frequency response, low frequency cutoff and probe-turbulence interaction. Estimates of the various errors are given and certain correction procedures are suggested. (Author)

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Barefoot, G. L.;
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年度 1972
页码 p.1-103
总页数 103
原文格式 PDF
正文语种 eng
中图分类
关键词
Jet mixing flow ; Acoustic properties ; Flow fields ; Noise ; Subsonic characteristics ; Mathematical prediction ; Walls ; Interference ; Test facilities ; Frequency ; Response ; Errors;

机译：喷射混合流动;声学特性;流场;噪声;亚音速特性;数学预测;墙壁;干扰;测试设施;频率;响应;误差;

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3. CHARACTERISTICS OF CORRELATION AND SPECTRUM BETWEEN WALL FLUCTUATING PRESSURE AND FLUCTUATING VELOCITY FO IMPING- ING JET [J] . Dai Guang-qing, Yang Yong-quan, Yang Qing Journal of Hydrodynamics . 2002,第3期

机译：射流壁波动压力与波动速度之间的相关性和谱特征
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5. TURBULENT VELOCITY-FIELD STRUCTURE IN A ROUND JET AND ITS RELATION TO FLUCTUATING PRESSURE-FIELDS. [D] . WEBER, DAVID PAUL. 1974

机译：圆射流中湍流场的结构及其与脉动压力场的关系。
6. SAMPLEX: Automatic mapping of perturbed and unperturbed regions of proteins and complexes [O] . Mickaël Krzeminski, Karine Loth, Rolf Boelens, 2010

机译：SAMPLEX：自动映射蛋白质和复合物的受干扰和无干扰区域
7. Phase Mixing in Unperturbed and Perturbed Hamiltonian Systems [O] . Kandrup, H E, Novotny, S J 2002

机译：无扰动和哈密顿系统中的相混合
8. Measurement of Mean and Fluctuating Temperature and of Ion Concentration in Round Free-Jet Turbulent Diffusion and Premixed Flames [R] . F. C. Lockwood, A. O. Odidi 1974

机译：圆形自由射流湍流扩散和预混火焰中平均和波动温度以及离子浓度的测量

Fluctuating Pressure Characteristics in the Mixing Region of a Perturbed and Unperturbed Round Free Jet

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