Estimation of aerodynamic noise of diaphragms through IEC 60534-8-3 and CFD

Fenini Luca; Quaroni Luca Nicola; Malavasi Stefano

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Estimation of aerodynamic noise of diaphragms through IEC 60534-8-3 and CFD

机译：通过IEC 60534-8-3和CFD估算隔膜的空气动力学噪声

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The aerodynamic noise emitted by a subsonic flow of dry air through an orifice plate is estimated in terms of internal sound power level and external sound pressure level (SPL) by application of the methodology described in the international standard IEC 60534-8-3. A shortcoming of the standard in defining the efficiency of the transformation of the mechanical energy of the flow into acoustic energy is discussed. Experimental evidence of the matter is also described. An alternative model employing the resolution of Reynolds Averaged Navier-Stokes equations (RANS) by means of Computational Fluid Dynamics (CFD) techniques for the calculation of the acoustic power generated by the turbulent flow through the orifice plate is applied so as to overcome the issue.

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来源
《Measurement and Control: Journal of the Institute of Measurement and Control》 |2021年第4期|共7页
作者
Fenini Luca; Quaroni Luca Nicola; Malavasi Stefano;
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作者单位

Politecn Milan Dept Civil &

Environm Engn Piazza Leonardo Vinci I-20133 Milan Italy;

Politecn Milan Dept Civil &

Environm Engn Piazza Leonardo Vinci I-20133 Milan Italy;

Politecn Milan Dept Civil &

Environm Engn Piazza Leonardo Vinci I-20133 Milan Italy;

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原文格式 PDF
正文语种 eng
中图分类仪器、仪表;
关键词
Aerodynamic noise; orifice plate; acoustic power; CFD;

机译：空气动力学噪声;孔板;声电源;CFD;

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2. Estimation of diaphragm wall deflections for deep braced excavation in anisotropic clays using ensemble learning [J] . Runhong Zhang, Chongzhi Wu, Anthony T.C.Goh, 地学前缘(英文版) . 2021,第001期
3. Improvement of IEC 60534-8-3 standard for noise prediction in control valves [J] . J. KIESBAUER, D. VNUCEC Hydrocarbon Processing . 2008,第1期

机译：改进了用于控制阀噪声预测的IEC 60534-8-3标准
4. The IEC Aerodynamic Valve Noise Prediction Standard Revisited [J] . Hans D. Baumann, Ed Singleton Measurement and Control: Journal of the Institute of Measurement and Control . 2008,第5期

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5. The impact of IEC 534-8-3 on control valve aerodynamic noise prediction [J] . E. W. Singleton Measurement and Control: Journal of the Institute of Measurement and Control . 1999,第2期

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7. Numerical investigation of tandem-cylinder aerodynamic noise and its control with application to airframe noise. [D] . Eltaweel, Ahmed. 2014

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9. The Impact of IEC 534-8-3 on Control Valve Aerodynamic Noise Prediction [O] . E.W. Singleton 1999

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10. CFD Fuel Slosh Modeling of Fluid-Structure Interaction in Spacecraft Propellant Tanks with Diaphragms [R] . Sances, D. J., Gangadharan, S. N., Sudermann, J. E., 2010

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Estimation of aerodynamic noise of diaphragms through IEC 60534-8-3 and CFD

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