Numerical and analytical solutions for sound propagation and absorption in porous media at high sound pressure levels.
Numerical and analytical solutions for sound propagation and absorption in porous media at high sound pressure levels.
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DOI：
10.1121/1.4739439
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发表时间：
2012-09
期刊：
影响因子：
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通讯作者：
Bo Zhang;Tianning Chen;Yuyuan Zhao;Weiyong Zhang;Jiang Zhu
中科院分区：
文献类型：
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作者：
Bo Zhang;Tianning Chen;Yuyuan Zhao;Weiyong Zhang;Jiang Zhu
基于Wilson等人的工作[J. Acoust.美国社会84，350-359（1988）]，构造了一种更精确的数值方法来预测高声压级下刚性多孔介质的非线性声传播和吸收特性。通过烧结纤维多孔钢试样的实验结果验证了数值解的正确性，并与Wilson等人的数值解进行了比较。基于Lambert和McIntosh [J. Acoust.美国社会88，1950-1959（1990）]。并与数值结果进行了比较。
On the basis of the work of Wilson et al. [J. Acoust. Soc. Am. 84, 350-359 (1988)], a more exact numerical approach was constructed for predicting the nonlinear sound propagation and absorption properties of rigid porous media at high sound pressure levels. The numerical solution was validated by the experimental results for sintered fibrous porous steel samples and its predictions were compared with the numerical solution of Wilson et al. An approximate analytical solution was further put forward for the normalized surface acoustic admittance of rigid air-saturated porous materials with infinite thickness, based on the wave perturbation method developed by Lambert and McIntosh [J. Acoust. Soc. Am. 88, 1950-1959 (1990)]. Comparisons were made with the numerical results.