Navarro Ruiz, JM.; Escolano Carrasco, J.; López Monfort, JJ. (2012). Implementation and evaluation of a diffusion equation model based on finite difference schemes for sound field prediction in rooms. Applied Acoustics. 73(6):659-665. doi:10.1016/j.apacoust.2012.01.001
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/53215
Title:
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Implementation and evaluation of a diffusion equation model based on finite difference schemes for sound field prediction in rooms
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Author:
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Navarro Ruiz, Juan Miguel
Escolano Carrasco, José
López Monfort, José Javier
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UPV Unit:
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Universitat Politècnica de València. Departamento de Comunicaciones - Departament de Comunicacions
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Issued date:
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Abstract:
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In this paper, the use of finite difference schemes for the acoustic diffusion equation model is introduced. Their features and limitations are analysed to select the adequate scheme based on both the stability conditions ...[+]
In this paper, the use of finite difference schemes for the acoustic diffusion equation model is introduced. Their features and limitations are analysed to select the adequate scheme based on both the stability conditions and the error order. The air absorption effects on the implementation are also discussed in terms of stability. To investigate the validity of the implementation, a set of simulations was conducted in a cubic room with four different absorption distributions. This evaluation was done by increasing either the spatial or the temporal resolutions of the studied scheme. The predicted values are compared with the statistical theory and geometrical models. The simulations suggested an empirical criterion for predicting the spatial and temporal resolutions that maximise the performance of the finite difference scheme © 2012 Elsevier Ltd. All rights reserved.
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Subjects:
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Acoustic diffusion equation model
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Finite difference scheme
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Room acoustic simulation
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Absorption distribution
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Diffusion-equation models
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Error order
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Stability condition
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Statistical theory
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Temporal resolution
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Acoustic fields
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Finite difference method
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Copyrigths:
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Cerrado |
Source:
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Applied Acoustics. (issn:
0003-682X
) (eissn:
1872-910X
)
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DOI:
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10.1016/j.apacoust.2012.01.001
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Publisher:
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Elsevier
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Publisher version:
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http://dx.doi.org/10.1016/j.apacoust.2012.01.001
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Project ID:
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Spanish Ministry of Science and Technology (MCYT) TEC2009-14414-C03-01
FEDER
San Antonio Catholic University of Murcia (Spain) PMAFI-PI-13/11
University of Jaen UJA2009/12/12
Caja Rural de Jaen (Spain) UJA2009/12/12
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Thanks:
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This research is supported by the Spanish Ministry of Science and Technology (MCYT) under Project Ref. TEC2009-14414-C03-01 and FEDER funds. The work of JMN is also supported by the San Antonio Catholic University of Murcia ...[+]
This research is supported by the Spanish Ministry of Science and Technology (MCYT) under Project Ref. TEC2009-14414-C03-01 and FEDER funds. The work of JMN is also supported by the San Antonio Catholic University of Murcia (Spain) under Project Ref. PMAFI-PI-13/11. The work of JE is also supported by the University of Jaen and Caja Rural de Jaen (Spain) under Project Ref. UJA2009/12/12.
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Type:
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Artículo
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