TY - GEN
T1 - Classification of relative influence of physical parameters for long range acoustic propagation
AU - Junker, Fabrice
AU - Blanc-Benon, Philippe
AU - Cotté, Benjamin
AU - Gauvreau, Benoit
AU - Bérengier, Michel
AU - Ecotière, David
AU - Cremezi-Charlet, Cora
PY - 2006/12/1
Y1 - 2006/12/1
N2 - A research project supported by the French Ministry of Ecology and Sustainable Development has ended in September 2006. The aim was to lead a sensitivity study on the influence of micrometeorology and impedance changes on sound propagation from road, rail and industrial noises. Both experimental and numerical work has been achieved. An important experimentation has been conducted during three months, with roughly one hundred meteorological and acoustical sensors. It has provided a database of reference results in a wide range of meteorological conditions. A large number of calculations have been done using different kinds of models (Parabolic Equation, Ray Tracing). Numerical results enable to study in detail different practical situations. For example, in upward-refracting conditions, the relative influence of turbulence parameters involved in the scattering of sound in the shadow zone was studied. Calculations in downward-refracting conditions have also been done by using ray tracing. All these results are helpful to define a new classification method for calculating and measuring noise levels.
AB - A research project supported by the French Ministry of Ecology and Sustainable Development has ended in September 2006. The aim was to lead a sensitivity study on the influence of micrometeorology and impedance changes on sound propagation from road, rail and industrial noises. Both experimental and numerical work has been achieved. An important experimentation has been conducted during three months, with roughly one hundred meteorological and acoustical sensors. It has provided a database of reference results in a wide range of meteorological conditions. A large number of calculations have been done using different kinds of models (Parabolic Equation, Ray Tracing). Numerical results enable to study in detail different practical situations. For example, in upward-refracting conditions, the relative influence of turbulence parameters involved in the scattering of sound in the shadow zone was studied. Calculations in downward-refracting conditions have also been done by using ray tracing. All these results are helpful to define a new classification method for calculating and measuring noise levels.
M3 - Conference contribution
AN - SCOPUS:84867944607
SN - 9781604231366
T3 - Institute of Noise Control Engineering of the USA - 35th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2006
SP - 1790
EP - 1798
BT - Institute of Noise Control Engineering of the USA - 35th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2006
T2 - 35th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2006
Y2 - 3 December 2006 through 6 December 2006
ER -