Advanced search
2 files | 3.98 MB

Estimating the effect of semi-transparent low-height road traffic noise barriers with ultra weak variational formulation

Lei Ding (UGent) , Timothy Van Renterghem (UGent) and Dick Botteldooren (UGent)
Author
Organization
Abstract
The ultra weak variational formulation (UWVF) approach is used to study the effect of semi-transparent road traffic noise barriers of limited height. This numerical method is extended to simulate sound propagation through a porous medium, based on the Zwicker and Kosten phenomenological porous rigid-frame model. An efficient approach to calculate noise levels in multi-lane road traffic noise situations is presented. The UWVF method was validated successfully by comparison with finite-difference time-domain (FDTD) calculations, for the case of sound propagation near a porous, low-height, and complex shaped noise barrier, and for sound propagation above porous ground in a refracting atmosphere. An assessment is made of the shielding of various porous low-height noise barriers for people on the pavement along the road. Porous barriers were shown to improve noise shielding when compared to geometrically identical rigid noise barriers.
Keywords
STREET, GREEN ROOFS, MODEL, SOUND-PROPAGATION, PERFECTLY MATCHED LAYER, WAVES, AREAS, CANYON, PERFORMANCE

Downloads

  • (...).pdf
    • full text
    • |
    • UGent only
    • |
    • PDF
    • |
    • 1.62 MB
  • 5137 i.pdf
    • full text
    • |
    • open access
    • |
    • PDF
    • |
    • 2.37 MB

Citation

Please use this url to cite or link to this publication:

Chicago
Ding, Lei, Timothy Van Renterghem, and Dick Botteldooren. 2011. “Estimating the Effect of Semi-transparent Low-height Road Traffic Noise Barriers with Ultra Weak Variational Formulation.” Acta Acustica United with Acustica 97 (3): 391–402.
APA
Ding, L., Van Renterghem, T., & Botteldooren, D. (2011). Estimating the effect of semi-transparent low-height road traffic noise barriers with ultra weak variational formulation. ACTA ACUSTICA UNITED WITH ACUSTICA, 97(3), 391–402.
Vancouver
1.
Ding L, Van Renterghem T, Botteldooren D. Estimating the effect of semi-transparent low-height road traffic noise barriers with ultra weak variational formulation. ACTA ACUSTICA UNITED WITH ACUSTICA. 2011;97(3):391–402.
MLA
Ding, Lei, Timothy Van Renterghem, and Dick Botteldooren. “Estimating the Effect of Semi-transparent Low-height Road Traffic Noise Barriers with Ultra Weak Variational Formulation.” ACTA ACUSTICA UNITED WITH ACUSTICA 97.3 (2011): 391–402. Print.
@article{2043209,
  abstract     = {The ultra weak variational formulation (UWVF) approach is used to study the effect of semi-transparent road traffic noise barriers of limited height. This numerical method is extended to simulate sound propagation through a porous medium, based on the Zwicker and Kosten phenomenological porous rigid-frame model. An efficient approach to calculate noise levels in multi-lane road traffic noise situations is presented. The UWVF method was validated successfully by comparison with finite-difference time-domain (FDTD) calculations, for the case of sound propagation near a porous, low-height, and complex shaped noise barrier, and for sound propagation above porous ground in a refracting atmosphere. An assessment is made of the shielding of various porous low-height noise barriers for people on the pavement along the road. Porous barriers were shown to improve noise shielding when compared to geometrically identical rigid noise barriers.},
  author       = {Ding, Lei and Van Renterghem, Timothy and Botteldooren, Dick},
  issn         = {1610-1928},
  journal      = {ACTA ACUSTICA UNITED WITH ACUSTICA},
  language     = {eng},
  number       = {3},
  pages        = {391--402},
  title        = {Estimating the effect of semi-transparent low-height road traffic noise barriers with ultra weak variational formulation},
  url          = {http://dx.doi.org/10.3813/AAA.918420},
  volume       = {97},
  year         = {2011},
}

Altmetric
View in Altmetric
Web of Science
Times cited: