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首页> 外文期刊>Applied Acoustics >Application of the Transmission Line Matrix method for outdoor sound propagation modelling - Part 2: Experimental validation using meteorological data derived from the meso-scale model Meso-NH
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Application of the Transmission Line Matrix method for outdoor sound propagation modelling - Part 2: Experimental validation using meteorological data derived from the meso-scale model Meso-NH

机译：传输线矩阵法在室外声音传播建模中的应用-第2部分：使用从中尺度模型Meso-NH导出的气象数据进行实验验证

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摘要

Outdoor sound prediction is both a societal concern and a scientific issue. This paper deals with numerical simulations of micrometeorological (temperature and wind) fields for environmental acoustics. These simulations are carried out using the reference meso-scale meteorological model at the Meteo-France weather agency (Meso-NH). Meso-NH predictions at very fine scales (up to 3 m), including new developments (drag force approach), are validated both numerically and experimentally under stable, unstable and neutral conditions. Then, this information can be used as input data for the acoustic propagation model. The time-domain acoustic model is based on the Transmission Line Matrix method. Its development has also been promoted for application to outdoor sound propagation, i.e. to take into account topography, ground impedance, meteorological conditions, etc. In part 1, the presentation and evaluation of the Transmission Line Matrix method showed the relevance of this method's use in the context of environmental acoustics. Finally, simulated noise levels under different propagation conditions were compared to in situ measurements. Satisfactory results were obtained regarding the variability of the observed phenomena.
机译：户外声音预测既是社会关注的问题，也是科学问题。本文涉及环境声学的微气象（温度和风）场的数值模拟。这些模拟是使用法国气象局（Meso-NH）的参考中尺度气象模型进行的。在稳定，不稳定和中性条件下，无论是数值还是实验上都通过数值和实验验证了极细尺度（最大3 m）的中观NH预报，包括新的进展（阻力法）。然后，该信息可以用作声传播模型的输入数据。时域声学模型基于“传输线矩阵”方法。它的发展也得到了推广，可应用于室外声音传播，即考虑到地形，地面阻抗，气象条件等。在第1部分中，传输线矩阵法的表示和评估表明了该方法在实际中的应用意义。环境声学的背景。最后，将不同传播条件下的模拟噪声水平与现场测量结果进行了比较。关于观察到的现象的可变性获得了令人满意的结果。

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  • 来源
    《Applied Acoustics》 |2014年第2期|107-112|共6页
  • 作者

    Pierre Aumond; Gwenaeel Guillaume; Benoit Gauvreau; Christine Lac; Valery Masson; Michel Berengier;

  • 作者单位

    Institut Francais des Sciences et Technologies des Transports, de l'Amenagement et des Reseaux, Departement Infrastructures et Mobilite, Route de Bouaye, B.P. CS4, 44344 Bouguenais Cedex, France;

    Institut Francais des Sciences et Technologies des Transports, de l'Amenagement et des Reseaux, Departement Infrastructures et Mobilite, Route de Bouaye, B.P. CS4, 44344 Bouguenais Cedex, France;

    Institut Francais des Sciences et Technologies des Transports, de l'Amenagement et des Reseaux, Departement Infrastructures et Mobilite, Route de Bouaye, B.P. CS4, 44344 Bouguenais Cedex, France;

    Meteo-France, 42 Avenue Gaspard Coriolis, 31100 Toulouse, France;

    Meteo-France, 42 Avenue Gaspard Coriolis, 31100 Toulouse, France;

    Institut Francais des Sciences et Technologies des Transports, de l'Amenagement et des Reseaux, Departement Infrastructures et Mobilite, Route de Bouaye, B.P. CS4, 44344 Bouguenais Cedex, France;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Meso-NH; Transmission Line Matrix model; Time-Domain method; Outdoor sound propagation; Micrometeorology; Experimental data;

    机译：Meso-NH;传输线矩阵模型;时域方法;户外声音传播;微气象学;实验数据;

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