| 管道声传播数值计算与实验结果比较 |
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| 引用本文： | 朱之墀, 李沛滋, 王治国. 管道声传播数值计算与实验结果比较[J]. 声学学报, 1988, 13(1): 1-8. DOI: 10.15949/j.cnki.0371-0025.1988.01.001 |
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| 作者姓名： | 朱之墀 李沛滋 王治国 |
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| 作者单位： | 清华大学(朱之墀)，中国科学院声学研究所(李沛滋)，清华大学(王治国) |
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| 摘 要： | 本文对管道声传播数值计算提出了一组判据,用来衡量数值计算的可靠性;对于具有壁面声阻抗间断的声传播问题,提出了一种处理方法,可保证数值计算的准确性。本文还给出了一组硬壁-软壁-硬壁二维管道声传播数值计算结果与实测结果比较曲线及几个算例,说明本文采用的数值计算模型是合适的,提出的判据及间断点处理方法是成功的。
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| 收稿时间： | 1985-07-26 |
NUMERICAL SOLUTION COMPARED WITH EXPERIMENTAL RESULT FOR SOUND PROPAGATION IN DUCTS |
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| ZHU Zhi-chi, LI Pei-zi, WANG Zhi-guo. NUMERICAL SOLUTION COMPARED WITH EXPERIMENTAL RESULT FOR SOUND PROPAGATION IN DUCTS[J]. ACTA ACUSTICA, 1988, 13(1): 1-8. DOI: 10.15949/j.cnki.0371-0025.1988.01.001 |
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| Authors: | ZHU Zhi-chi LI Pei-zi WANG Zhi-guo |
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| Abstract: | Computational criteria used to judge the correctness of numerical calculation for sound propagation in ducts,are presented in the paper.An improved finite-difference scheme is proposed to compute problems with the discontinuity of the wall impedance.Moreover,the comparison of curves of numerical solution with experimental results for sound propagation in hard-soft-hard wall ducts and other examples are also presented.It is shown that both the criteria and the approach to discontinuity are successful and the computational model is rational. |
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