Conference_programme: 19.2 - Outdoor sound propagation

Lecture: Impulse sound propagation in open environments: time-domain simulations versus measurements

Author(s): Cosnefroy Matthias, Cheinet Sylvain, Ehrhardt Loïc, Dagallier Adrien, Dragna Didier, Juvé Daniel

Summary:
Characteristics of impulse sounds close to the ground strongly depend on the atmospheric and ground properties in terms of amplitude, shape, and time of arrival. Time-domain numerical modeling is valuable to decipher the interactions between the refractive, scattering and ground effects. A three-dimensional high-order parallel Finite-Difference Time-Domain solver with the moving frame approach is presented. To ensure reliable results, the model is validated against experimental measurements up to 450 meters under different weather conditions. Sensitivity studies are then performed to emphasize the huge variability of impulse sounds outdoors.

Corresponding author

Name: Mr Matthias Cosnefroy

e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Country: France