Modelling absorption in porous asphalt concrete for oblique incident sound waves

Marieke Bezemer-Krijnen, Ysbrand H. Wijnant, Andries de Boer

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

1 Citation (Scopus)
84 Downloads (Pure)

Abstract

A numerical model to predict the sound absorption of porous asphalt has been developed. The approach is a combination between a microstructural approach and a finite element approach. The model used to describe the viscothermal properties of the air inside the pores of the asphalt is the low reduced frequency model (LRF). The geometry of the porous asphalt is implemented directly in the FEM model, where a fast simulation will give both the viscothermal losses of the sound energy within the pores as well as the scattering due to the stones.
Original languageEnglish
Title of host publicationproceedings ISMA2014-USD2014
EditorsP Sas, D. Moens, H. Denayer
PublisherKatholieke Universiteit Leuven
Pages1723-1730
ISBN (Print)9789073802919
Publication statusPublished - 15 Sep 2014
Event26th International Conference on Noise and Vibration Engineering, ISMA 2014 - Leuven, Belgium
Duration: 15 Sep 201417 Sep 2014
Conference number: 26
http://past.isma-isaac.be/isma2014

Publication series

Name
PublisherKU Leuven - Departement Werktuigkunde

Conference

Conference26th International Conference on Noise and Vibration Engineering, ISMA 2014
Abbreviated titleISMA
CountryBelgium
CityLeuven
Period15/09/1417/09/14
Internet address

Fingerprint

asphalt
sound waves
porosity
sound transmission
rocks
acoustics
air
geometry
scattering
simulation
energy

Keywords

  • METIS-304624
  • IR-93474

Cite this

Bezemer-Krijnen, M., Wijnant, Y. H., & de Boer, A. (2014). Modelling absorption in porous asphalt concrete for oblique incident sound waves. In P. Sas, D. Moens, & H. Denayer (Eds.), proceedings ISMA2014-USD2014 (pp. 1723-1730). Katholieke Universiteit Leuven.
Bezemer-Krijnen, Marieke ; Wijnant, Ysbrand H. ; de Boer, Andries. / Modelling absorption in porous asphalt concrete for oblique incident sound waves. proceedings ISMA2014-USD2014. editor / P Sas ; D. Moens ; H. Denayer. Katholieke Universiteit Leuven, 2014. pp. 1723-1730
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Bezemer-Krijnen, M, Wijnant, YH & de Boer, A 2014, Modelling absorption in porous asphalt concrete for oblique incident sound waves. in P Sas, D Moens & H Denayer (eds), proceedings ISMA2014-USD2014. Katholieke Universiteit Leuven, pp. 1723-1730, 26th International Conference on Noise and Vibration Engineering, ISMA 2014, Leuven, Belgium, 15/09/14.

Modelling absorption in porous asphalt concrete for oblique incident sound waves. / Bezemer-Krijnen, Marieke; Wijnant, Ysbrand H.; de Boer, Andries.

proceedings ISMA2014-USD2014. ed. / P Sas; D. Moens; H. Denayer. Katholieke Universiteit Leuven, 2014. p. 1723-1730.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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N2 - A numerical model to predict the sound absorption of porous asphalt has been developed. The approach is a combination between a microstructural approach and a finite element approach. The model used to describe the viscothermal properties of the air inside the pores of the asphalt is the low reduced frequency model (LRF). The geometry of the porous asphalt is implemented directly in the FEM model, where a fast simulation will give both the viscothermal losses of the sound energy within the pores as well as the scattering due to the stones.

AB - A numerical model to predict the sound absorption of porous asphalt has been developed. The approach is a combination between a microstructural approach and a finite element approach. The model used to describe the viscothermal properties of the air inside the pores of the asphalt is the low reduced frequency model (LRF). The geometry of the porous asphalt is implemented directly in the FEM model, where a fast simulation will give both the viscothermal losses of the sound energy within the pores as well as the scattering due to the stones.

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Bezemer-Krijnen M, Wijnant YH, de Boer A. Modelling absorption in porous asphalt concrete for oblique incident sound waves. In Sas P, Moens D, Denayer H, editors, proceedings ISMA2014-USD2014. Katholieke Universiteit Leuven. 2014. p. 1723-1730