Acoustics
Johnson-Champoux-Allard 模型
Johnson-Champoux-Allard modelA theoretical model used to predict the acoustic properties of porous materials, specifically the complex density and bulk modulus, based on microstructural parameters. / 一种基于微观结构参数预测多孔材料声学特性的理论模型，具体包括复密度和体积模量。
- Knowledge type
- 自然理论
- First proposed or discovered
- Proposer
- Turkey Farm member
- Creator
- 农场主
- Last updated
- 2026-10-27 16:01:31
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Main parameters and performance indicators
porosity: void fraction of the materialtortuosity: measure of path complexityflow resistivity: resistance to airflowviscous characteristic length: scale of pore sizethermal characteristic length: scale of pore size
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Related literature
ranked by community starsModel-constrained ANN prediction of Johnson-Champoux-Allard parameters and sound absorption of railway ballastOpen source
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1 recordsRecord title: Johnson-Champoux-Allard model.
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