| 轴对称充分扩展喷注中的声源分布 |
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| 引用本文： | 王佐民. 轴对称充分扩展喷注中的声源分布[J]. 声学学报,1987,12(1): 29-37. DOI: 10.15949/j.cnki.0371-0025.1987.01.005 |
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| 作者姓名： | 王佐民 |
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| 作者单位： | 中国科学院声学研究所 |
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| 摘 要： | 本文根据流体力学的基本原理和Lighthill四极子源的理论,导出轴对称喷注中声源分布的有关公式。并且,对轴对称充分扩展喷注和共轴喷注分别进行了相应的数值计算。同时,根据数值计算的结果,估算了Lighthill八次方定律中的比例系数。理论讨论与相应的实验吻合极好。
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| 收稿时间： | 1984-10-04 |
THE DISTRIBUTION OF SOUND SOURCE IN AN AXIALLYSYMMETRIC FULLY EXPANDED JET |
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| WANG Zuo-min. THE DISTRIBUTION OF SOUND SOURCE IN AN AXIALLYSYMMETRIC FULLY EXPANDED JET[J]. ACTA ACUSTICA,1987,12(1): 29-37. DOI: 10.15949/j.cnki.0371-0025.1987.01.005 |
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| Authors: | WANG Zuo-min |
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| Abstract: | Formulas,which can be used to calculate the distribution of sound source in an axiallysymmetric jet,were derived from the fundamental theory of hydrodynamics and Lighthill's quadrupole theory. Numerical calculations in a fully expanded jet and coaxial jets were performed with a computer. The coefficient of LighthilPs eighth power law was estimated. Theoretical results are in good agreement with corresponding experiments. |
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